ISSN: 2755-0176 | Open Access

Journal of Cancer Research Reviews & Reports

Smoking and Its Relationship with Cancer

Author(s): Shashi K Agarwal

Abstract

Tobacco smoking is a popular pastime all over the world. It is the leading preventable cause of cancer. Tobacco smoke is loaded with carcinogens that harm literally every tissue in the human body. It is the main cause of cancers of the lung, esophagus, and urinary bladder. Besides its deleterious effect on the primary smokers, exhaled smoke and side-stream smoke from their cigarettes also increase the risk of cancer in non-smokers from passive inhalation. Almost one-half of the cancer sufferers continue to smoke after its diagnosis, and this interferes with treatment, increases the risk of recurrence, is associated with a poor quality of life, and markedly hikes mortality. Tobacco smoking is implicated in about a third of all cancer deaths. It also increases the risk of developing a second primary cancer. Smoking cessation not only reduces the risk of developing new cancer but also favorably alters the course of established cancer. It can also bestow an extra 20 years of life. This manuscript briefly reviews the noxious relationship between tobacco smoke and cancer.

Introduction

Cancer is a major public health problem worldwide. It accounted for nearly 10 million deaths in 2020. It is now the second leading cause of death globally and is soon expected to become the leading cause. Cancer is also common in the world’s most populous country, China has become its leading cause of death. According to data from Globocan 2020, Africa had 1,340,598,088 new cases of cancer in 2020. The World Health Organization estimates that one-quarter of the worldwide cancers occur in Europe, although it houses only one-eighth of the world population. Cancer is also pervasive in the US. It is estimated that an American male has a 40% lifetime risk while an American female has a 38% lifetime risk of developing cancer. Survival is poor, and about 40% of the US cancer sufferers die within 5 years. Tobacco smoking is a wellestablished preventable cause of cancer. Despite these facts, nearly 17% of U.S. adults continue to smoke. The total care of cancer in the US is estimated to be around $173 billion in 2020 [1-14].

Discussion

Percivall Pott in 1775 was the first to link environmental carcinogens with cancer, reporting that squamous cell carcinoma of the scrotal skin was prevalent among chimney sweeps. About 180 years later. Wynder and Graham in 1956 suggested that tobacco smoke inhalation is associated with lung cancer. This causal relationship is now widely accepted. Tobacco smoke has thousands of chemicals, with at least 250 known harmful chemicals and at least 69 that can cause cancer. These cancer-causing chemicals include toxic metals like nickel, cadmium and beryllium, toxic gases like ethylene oxide and 1,3-butadiene, poisonous substances like arsenic, radioactive elements like polonium-210, and toxic chemicals like polycyclic aromatic hydrocarbons, tobacco-specific nitrosamines, and vinyl chloride. Smoking tobacco exposes individuals to these noxious elements in several ways [15-21]. Most commonly, smoke enters the smoker’s mouth directly from the cigarette being smoked. This is commonly known as first-hand smoke or mainstream smoke [19]. Side-stream cigarette smoke emanates from the burning ends of a cigarette and along with the exhaled main-steam smoke and is inhaled by non-smokers. This is called second-hand smoke or passive smoke [20]. Third-hand smoke is the residue from tobacco products, that cling to surfaces such as hair, clothing, and furniture. These pollutants may persist on these surfaces for several months. They may become airborne during regular cleaning, resulting in inhalation. Carcinogens are also inhaled during water pipe, e-cigarettes, and heat-not-burn tobacco smoking [21-24].

Tobacco smoking is known to be associated with an increased risk of several cancers, including those of the larynx, oropharynx, esophagus, lung, bladder, kidney, urinary tract, cervix, gastrointestinal tract, and blood [9,25]. A recent study estimated that smoking accounted for 81.7% of lung cancers, 73.8% of larynx cancers, 50% of esophageal cancers, and 46.9% of bladder cancers. It is estimated to be responsible for 28.8% of all cancer deaths. Unfortunately, smokers continue to smoke even after cancer diagnosis. Among current smokers with cancer, it is estimated that only 50% stop smoking after diagnosis. Continued smoking in these patients increases the risk of poor treatment response and treatment-related toxic effects. They tend to have a higher risk of cancer recurrence. They also face an increased risk of developing a primary second cancer. Smoking with cancer not only lowers the quality of life but also increases mortality. Smoking cessationin these patients often has benefits that equal or exceed cancer treatments. Studies have estimated that smoking cessation after the diagnosis of cancer reduces the risk of dying by 30% to 40% [26-36].

Smokers also tend to lead other unhealthy lifestyles, such as high consumption of junk food, decreased levels of exercise, and greater alcohol use. This not only increases the cancer risk but also increases the risk of developing chronic ailments such as cardiovascular and respiratory diseases. They also tend to comply less with breast, cervical and colorectal screening guidelines than never-smokers. Tobacco deregulates many biological pathways, induces inflammation, impaired immune function, and DNA damage, leading to an increase in tumor proliferation, invasion, and angiogenesis [37-41].

Smoking and Lung Cancer

Lung cancer is strongly related to smoking and is extremely deadly [9,42]. Although rare at the beginning of the 20th century, an increase in smoking has resulted in a dramatic rise in its incidence [43,44]. Today, 85-90% of lung cancers can be attributed to smoking [45]. The association is dose-dependent and higher levels of smoking are associated with a higher lung cancer risk, in both men and women. Although gender differences have been reported by several studies, a recent systemic review and metaanalysis found no difference in risks of smoking-induced lung cancer between men and women. It is the leading cause of cancerrelated death, accounting for nearly 25% of all cancer deaths in the US. Smoking cessation is beneficial in reducing the risk of lung cancer. The Framingham Heart Study showed that heavy former smokers see a drop in lung cancer risk within five years of quitting compared to continuing smokers. However, the risk remains threefold higher than never smokers even after 25 years since quitting. It is estimated that 37%-63.9% of patients with lung cancer continue to smoke after diagnosis. Continued smoking after lung cancer diagnosis increases the symptom burden, decreases the quality of life, and is associated with a shorter survival time. It also increases the risk of developing a second, primary cancer [46-57].

Smoking and Breast Cancer

Smoking as a risk factor for the development of breast cancer has been studied extensively. Several earlier studies have provided contradictory results regarding the role of smoking in breast cancer [58-61]. While some studies showed a causal association between smoking and breast cancer, others have not corroborated this connection [59-61]. Recent studies, using advanced techniques, have however validated the deleterious causal relationship between smoking and breast cancer. Xu et al, in an MR analysis, found that smoking was associated with a higher risk of overall and ERpositive breast cancer. In a case-controlled study of 1000 women with breast cancer and 1000 healthy controls, probabilistic bias analysis found that smoking increased the risk for breast cancer, with an odds ratio (OR) of 1.7 - 2.8. Smokers with a diagnosis of breast cancer also suffer from more post-operative complications. They have more radiation-induced toxicities and a worse quality of life. They are also more susceptible to a second primary cancer. Radiation therapy increases their risk of developing ipsilateral lung cancer. They demonstrate a higher all-cause and breast cancerrelated mortality. The latter is almost 50% greater in smokers than never smokers among breast cancer survivors. Active smokers are also less likely to use breast cancer screening services, thereby increasing their risk of not detecting early stage breast cancer [62-72].

Smoking and Colorectal Cancer

Several studies have noticed that ever-smokers are at an increased risk for incident colorectal cancer compared with never-smokers [73-75]. In a study involving a total of 925 colorectal cancer cases and 2775 controls, Lee and his group found that colorectal cancer risk was significantly increased by smoking, in both men and women. This risk, especially for cancer of the distal colon, increased with a higher amount (>40 cig/day in men and >20 cig/ day in women) or duration (>40 years in men and >20 years in women) of smoking. Some studies have suggested that smoking is more likely to cause left-sided colorectal cancers. Yang and colleagues in a recent study confirmed this increased tendency for left-sided lesions, especially rectal cancer, in smokers. In an evaluation of 4,879 incident cases of invasive colorectal adenocarcinoma in 188,052 individuals aged 45-75 years, with a follow-up of 16.7 years, Gram et al noted that rectal cancer was more common in female smokers. Gram et al also reported that male smokers had a higher risk of the left colon while female smokers had a 20% higher risk of cancer of the right colon. In a meta-analytic study, former and current smokers experienced a worse colorectal cancer prognosis compared with never smokers. Smoking cessation also improved survival when compared with current smokers [76-81].

Smoking and Prostate Cancer

Cigarette smoking is associated with the development of several genitourinary cancers. However, an association with prostate cancer appears to be only linked with prostate cancer progression. Smokers tend to have higher tumor volumes with prostate cancer, have more recurrences after surgery, and develop more metastasis. Heavy smokers also have higher mortality, and this may be 24% to 30% higher when compared with nonsmokers. The number of cigarettes smoked per day also has a dose-related association with prostate cancer mortality. Smoking cessation for at least 10 years in men reduces the risk of prostate cancer mortality like those who have never smoked [82-91].

Smoking and Stomach Cancer

Several studies have established a firm causal role of smoking in gastric cancer [92-94]. In a study of 23 epidemiological studies that included 10,290 cases and 26,145 controls, compared with never smokers, smokers demonstrated a higher risk of developing stomach cancer, with increased ORs of 1.12 for former, and 1.25 for current cigarette smokers. The risk was higher in heavy smokers (>20 cigarettes per day) and with those smoking for more than 40 years, with ORs of 1.32 and 1.35, respectively. These risks decreased to that of never smokers 10 years after smoking cessation. Helicobacter pylori infection is a major risk factor for gastric cancer. Smoking in those infected tends to further increase their risk of gastric cancer [95-98].

Smoking and Liver Cancer

Tobacco smoking was recognized, based on published reports, as a causal factor in the development of liver cancer by the International Agency for Research on Cancer in 2004. Several subsequent studies have confirmed this causal relationship [99-102]. Lee and colleagues found that current cigarette smokers had an increased meta-relative risk of hepatic cancer of 1.51 (and 1.12 in former smokers) after adjusting for hepatitis B infection (HBV), hepatitis C infection (HBC), and alcohol consumption [101]. A recent study of 14 US prospective cohort studies found that current smokers had an increased hazard ratio of both hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma of 1.86 and 1.47, respectively. However, quitting smoking for more than 30 yearsreduced the HCC risk to that seen in never smokers. Chronic infection with HBV and HBC are major causative factors for primary HCC. Chuang et al, found in a meta-analysis of 9 studies, that the presence of HBV infection increases the risk of HCC in current and past smokers. This increased risk with smoking has also been noted with chronic HCV infections [102-105].

Smoking and Esophageal Cancer

Several studies have documented an increased risk of esophageal cancer in smokers. Cook et al. reported that the risk for esophageal adenocarcinoma, in current smokers as compared to nonsmokers was associated with an OR of 2.08. Smoking cessation for 10 years or more reduces the risk of esophageal adenocarcinoma when compared to current smokers, decreasing the OR to 0.71. A metaanalysis of 12 studies by Oze and group indicated that the summary increased risk for esophageal carcinoma in ever smokers relative to never smokers was 3.01. This risk was higher in current smokers (3.73) than former smokers (2.21) compared to never smokers. Barrett’s esophagus is related to long-standing gastroesophageal reflux and is often associated with the conversion of the normal lower esophageal squamous epithelium into a metaplastic columnar epithelium. It is a premalignant condition. Smoking enhances the risk of Barrett’s esophagus progressing to cancer. Smoking is associated with higher rates of short-term perioperative morbidity in patients with esophageal cancer. Wang and his group found that in an analysis of 52 studies, using nonsmokers as a reference, the risk of esophageal squamous cell carcinoma was lower among former smokers (risk ratio or RR = 2.05) than among current smokers (RR = 4.18) [106-112]. Compared with current smokers, a strong risk reduction was evident after five or more years (RR = 0.59) and became stronger after 10 or more years (RR = 0.42) and even greater after 20 or more years (RR = 0.34) following smoking cessation.

Smoking and Cervical Cancer

Tobacco smoking plays an important causal role in the genesis and progression of cervical cancer [113-117]. Winkelstein Jr., in 1977, first suggested that smoking was a risk factor for cervical cancer [113]. Since then, several studies have confirmed this deleterious connection, prompting the International Agency for Research on Cancer to list smoking as a risk factor for cervical cancer. A major meta-analysis (involving 8,097 women with squamous cell carcinoma, 1,374 women with adenocarcinoma, and 26,445 women without carcinoma of the cervix), confirmed that tobacco smoking increased the risk of squamous cell carcinoma of the cervix in smokers, but not that of the less common, adenocarcinoma of the cervix. A Berrington de Gonzalez et al. also found that the risk for squamous cell carcinoma with current smoking had an OR of 1.47, indicating increased risk, with no increased risk noted with adenocarcinoma. Several subsequent studies, including many meta-analyses, have confirmed this smoking-cervical cancer relationship, and pointed out the increased cervical cancer mortality in smokers. Waggoner et al, in a study of 2661 women diagnosed with invasive cervical cancer, reported that, after adjustment for many confounding factors, smokers were 21% more likely to die of cervical cancer compared with nonsmokers with cervical cancer. Mayadev and colleagues found that following radiation therapy, smokers with cervical cancer had a decreased disease-free period, and died early. Smoking cessation or smoking decrease in patients with cervical cancer during treatment is still not common. Human papillomavirus (HPV) infection plays an important causal role in cervical cancer. Studies have shown a potential link between smoking and incidence of cervical cancer, in the setting of concurrent HPV infection [114-128]. Smoking increases the risk of HPV infection and smokers often have delayed clearance of HPV infection from the cervix or regression of HPV-related squamous cell lesions. Many patients with persistent HPV infection tend to proceed to high-grade cervical lesions. Cervical cancer screening is a powerful diagnostic tool to diagnose pre-malignant lesions or early malignancy. However, many smokers have negative attitudes towards cervical screening than nonsmokers and tend to be less compliant with these screening procedures and any recommended treatment [126-131].

Smoking and Thyroid Cancer

Smoking and thyroid cancer studies have either showed no or an inverse association [132,133]. A meta-analysis of 25 case-control studies, published in 2014, concluded that smoking was associated with a lower risk of thyroid cancer in current smokers. In a recent study of 96,855 individuals, current smoking at baseline was significantly associated with a decreased risk of incident thyroid cancer, especially in men. A similar, although non-statistically significant, an inverse association was also noted in women in this study. Smoking may reduce the incidence of thyroid cancer by lowering the body mass index and lowering the levels of thyroidstimulating hormone (TSH). Studies have shown that higher TSH values are associated with a higher frequency and more advanced stages of thyroid cancer [134-138].

Smoking and Urinary Bladder Cancer

Tobacco smoking is a major risk factor for bladder cancer. It is estimated that nearly 50% of bladder cancer cases are related to smoking. A current or past smoking history results in a threefold higher chance of developing urinary bladder cancer when compared to non-smokers. Further, high-dose smokers or those with a long smoking history, are more likely to have a more aggressive form of cancer. Smokers also do not respond well to chemotherapy for bladder cancer. Smoking cessation is associated with a reduced risk of tumor recurrence and progression. Unfortunately, a significant number of bladder cancer patients continue to smoke following its diagnosis [139-145].

Smoking and Skin Cancer

Published data on tobacco smoking and its relationship to skin cancer is sparse. The major risk factors for skin cancer are sun exposure, pigmentary traits, and family history of skin cancer [146- 148]. Some studies have suggested that smoking may increase the risk of squamous cell carcinoma of the skin [149]. Cigarette smoking appears to not affect cutaneous malignant melanoma and may even decrease its risk. A recent study has suggested that smoking may increase the risk of melanoma lymph node metastasis [149-152].

Smoking and Kidney Cancer

Smoking increases the risk of development and progression of renal cell cancer. The International Agency for Research on Cancer and the United States Department of Health and Human Services classifies tobacco smoking as a kidney carcinogen. In a metaanalysis of 114 papers, Cumberbatch and his group reported that the pooled relative risk of renal cell carcinoma incidence was 1.27 for all smokers, 1.29 for current smokers, and 1.14 for former smokers. The cancer risk is higher when the quantity of tobacco smoked per day is higher. In developed countries, 6% of kidney cancer deaths are a result of tobacco smoking. Smoking cessation reduces the risks of developing and dying from this cancer. The longer the period of cessation, the lower the risk [153-160].

Smoking and Pancreatic Cancer

Tobacco smoking is an important risk factor for pancreatic cancer. Smokers have a 74% greater risk of developing pancreatic cancercompared with nonsmokers. Ordonez-Mena and colleagues estimated that current smoking will prepone the overall risk of developing and dying from cancer by eight years and ten years, respectively, when compared with never smokers. Smoking cessation for 10 or more years reduces the relative risk of pancreatic cancer to levels seen in non-smokers [161-164].

Smoking and Rare Cancers

Rare cancer affects fewer than 6 - 15 per 100,000 people per year [165]. Rare cancers account for nearly 13% (1 in 8) of all cancers diagnosed in adults over the age of 20 years. Rare cancers of the digestive system include cancers of the small intestine, anus, anal canal, rectum, and gall bladder. The most common rare cancers of the respiratory system occur in the larynx, nasopharynx, nose, and nasal cavity. Rare cancers of the genitourinary system include cancers of the vulva, vagina, penis, and testis. Rare bone and joint cancers in adults include chondrosarcoma and osteosarcoma. Soft tissue sarcomas include cancers of the adipose tissue (liposarcoma), skeletal muscle (rhabdomyosarcoma), smooth muscle (leiomyosarcoma), and blood and lymph vessels (angiosarcoma). Other rare cancers include ocular melanomas, male breast cancer, mesothelioma, and Kaposi’s sarcoma. Many of these cancers also demonstrate an increased risk with smoking and smoking cessation helps reduce this risk [166-167].

Conclusion

Smoking is a leading preventable cause of cancer. Tobacco smoke is loaded with carcinogens. These attack almost every organ in the body. The result is that smokers are at an increased risk of development and progression of most cancers when compared to never smokers. Further, continued smoking at cancer diagnosis may negatively interfere with treatment, is associated with a worse quality of life, and often increases mortality. Overall, smokers face a 10-20 years reduction in life expectancy, partly from premature cancer related death. Efforts directed at smoking cessation should be an integral part of every cancer treatment.

Acknowledgements: None
Funding: None
Conflict of Interest: None

References

  1. https://www.who.int/features/factfiles/cancer/en/ - accessed April 21, 2021.
  2. Ferlay J, Ervik M, Lam F, Colombet M, Mery L, et al. (2020) Global Cancer Observatory: Cancer Today. Lyon: International Agency for Research on Cancer. Available at: https://gco.iarc.fr/today accessed February 2021.
  3. https://gco.iarc.fr/ - accessed October 3, 2020.
  4. Dagenais GR, Leong DP, Rangarajan S, Fernando Lanas, Patricio Lopez-Jaramillo, et al. (2020) Variations in common diseases, hospital admissions, and deaths in middle-aged adults in 21 countries from five continents (PURE): a prospective cohort study. Lancet 395: 785-794.
  5. Yu S, Yang CS, Li J, You W, Chen J, et al. (2015) Cancer Prevention Research in China. Cancer Prev Res (Phila) 8: 662-674.
  6. Feng RM, Zong YN, Cao SM, Rui-Hua Xu (2019) Current cancer situation in China: good or bad news from the 2018 Global Cancer Statistics?. Cancer Commun 39: 22.
  7. Sung H, Ferlay J, Siegel RL, Laversanne M, Soerjomataram I, et al. (2021) Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin.
  8. https://www.euro.who.int/en/health-topics/ noncommunicable-diseases/cancer/data-and-statistics - accessed December 23, 2020.
  9. Siegel RL, Miller KD and Jemal A (2016) Cancer statistics, 2016. CA: A Cancer Journal for Clinicians, 66: 7-30.
  10. Noone AM, Howlader N, Krapacho M (2018) SEER cancer statistics review, 1975-2015 Bethesda, MD: National Cancer Institute.
  11. De Moor JS, Mariotto AB, Parry C, Catherine M Alfano, Lynne Padgett, et al. (2013) Cancer survivors in the United States: prevalence across the survivorship trajectory and implications for care. Cancer Epidemiol Biomarkers Prev 22: 561-570.
  12. Department of Health and Human Services, Public Health Service, Office of the Surgeon General. 2014. The health consequences of smoking-50 years of progress: a report of the Surgeon General. Rockville, MD: U.S. Department of Health and Human Services, Public Health Service, Office of the Surgeon General.
  13. Jamal A, Homa DM, O’Connor E, Babb SD, Caraballo RS, et al. (2015) Current cigarette smoking among adults , United States, 2005-2014. MMWR Morb. Mortal. Wkly Rep 64: 1233-1240.
  14. Mariotto AB, Yabroff KR, Shao Y, Feuer EJ, Brown ML (2011) Projections of the cost of cancer care in the United States: 2010-2020. J Natl Cancer Inst 103: 117-128.
  15. Pott Percivall (1775) Chirurgical Observations .London, England: L Hawes, W Clarke, and R Collins 63-68.
  16. Wynder EL, Graham EA (1950) Tobacco smoking as a possible etiologic factor in bronchiogenic carcinoma; a study of 684 proved cases. J Am Med Assoc 143: 329-336.
  17. US Department of Health and Human Services. The Health Consequences of Smoking-50 Years of Progress: A Report of the Surgeon General, 2014. Atlanta, GA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2014.
  18. National Toxicology Program. Tobacco-Related Exposures. In: Report on Carcinogens. Fourteenth Edition. U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program, 2016.
  19. Pryor WA, K Stone (1993) Oxidants in cigarette smoke: Radicals, hydrogen peroxide, peroxynitrate, and peroxynitrite. Ann NY Acad Sci 686: 12-28.
  20. E Taylor, DC Johnson, H Kazemi (1992) Environmental tobacco smoke and cardiovascular disease: A position paper from the Council on Cardiopulmonary and Critical Care, American Heart Association. Circulation, 86: 699-702.
  21. JP Winickoff, J Friebely, SE Tanski, C Sherrod, GE Matt, et al. (2009) Beliefs about the health effects of “thirdhand” smoke and home smoking bans. Pediatrics 123: e74-e79.
  22. Eissenberg T, Shihadeh A (2009) Waterpipe tobacco and cigarette smoking: direct comparison of toxicant exposure. Am J Prev Med 37: 518-523.
  23. Goniewicz ML, Knysak J, Gawron M (2014) Levels of selected carcinogens and toxicants in vapour from electronic cigarettes. Tob Control 23: 133-139.
  24. Auer R, Concha, Lozano N, Jacot-Sadowski I, Cornuz J, Berthet A (2017) Heat-not-burn tobacco cigarettes: smoke by any other name. JAMA Intern Med 177: 1050-1052.
  25. Warren GW, Alberg AJ (2014) The 2014 Surgeon General’s Report: “The Health Consequences of Smoking-50 Years of Progress” Cancer 120: 1914-1916.
  26. Islami F, Goding Sauer A, Miller KD (2018) Proportion and number of cancer cases and deaths attributable to potentially modifiable risk factors in the United States. CA: A CancerJournal for Clinicians 68: 31-54.
  27. Westmaas JL, Newton CC, Stevens VL, Flanders WD, Gapstur SM, et al. (2015) Does a recent cancer diagnosis predict smoking cessation? An analysis from a large prospective US cohort. J Clin Oncol 33: 1647-1652.
  28. Burke L, Miller LA, Saad A, Abraham J (2009) Smoking behaviors among cancer survivors: an observational clinical study. J Oncol Pract 5: 6-9.
  29. Babb S, Malarcher A, Schauer G, Asman K, Jamal A (2017) Quitting smoking among adults-United States, 2000-2015. MMWR Morb Mortal Wkly Rep 65: 1457-1464.
  30. National Center for Chronic Disease Prevention and Health Promotion (US) Office on Smoking and Health The Health Consequences of Smoking: 50 Years of Progress: A Report of the Surgeon General. Atlanta, GA: Centers for Disease Control and Prevention; 2014.
  31. Warren GW, Cartmell KB, Garrett-Mayer E, Salloum RG, Cummings KM (2019) Attributable Failure of First-line Cancer Treatment and Incremental Costs Associated With Smoking by Patients With Cancer. JAMA Netw Open 2: e191703
  32. Adjei Boakye E, Buchanan P, Hinyard L (2019) Trends in the risk and burden of second primary malignancy among survivors of smoking-related cancers in the United States. Int J Cancer 145: 143-153.
  33. Pophali PA, Larson MC, Rosenthal AC (2021) The association of health behaviors with quality of life in lymphoma survivors. Leuk Lymphoma. 62: 271-280.
  34. Tao L, Wang R, Gao YT, Yuan JM (2013) Impact of postdiagnosis smoking on long-term survival of cancer patients: the Shanghai cohort study. Cancer Epidemiol Biomarkers Prev 22: 2404-2411.
  35. Toll BA, Brandon TH, Gritz ER, Warren GW, Herbst RS (2013) AACR Subcommittee on Tobacco and Cancer. Assessing tobacco use by cancer patients and facilitating cessation: an American Association for Cancer Research policy statement. Clin Cancer Res 19: 1941-1948.
  36. Gritz ER, Toll BA, Warren GW (2014) Tobacco use in the oncology setting: advancing clinical practice and research. Cancer Epidemiol Biomarkers Prev 23.
  37. Lohse T, Rohrmann S, Bopp M, Faeh D (2016) Heavy smoking is more strongly associated with general unhealthy lifestyle than obesity and underweight. PLoS One 11: e0148563.
  38. National Cancer Institute. National Institutes of Health. Department of Health and Human Services. Cancer trends progress report: 2017 update. Bethesda, MD: National Cancer Institute; 2017.
  39. Sanford NN, Sher DJ, Butler S, Xu X, Ahn C, D’Amico AV, et al. (2019) Cancer Screening Patterns Among Current, Former, and Never Smokers in the United States, 2010-2015. JAMA Netw Open. 2: e193759
  40. Eng VA, David SP, Li S, Ally MS, Stefanick M, Tang JY (2020) The association between cigarette smoking, cancer screening, and cancer stage: a prospective study of the women’s health initiative observational cohort. BMJ Open 10: e037945.
  41. Sobus SL, Warren GW (2014) The biologic effects of cigarette smoke on cancer cells. Cancer. 120: 3617-3626.
  42. Allemani C, Matsuda T, Di Carlo V (2018) Global surveillance of trends in cancer survival 200- 2014 (CONCORD-3): analysis of individual records for 37,513,025 patients diagnosed with one of 18 cancers from 322 population-based registries in 71 countries. Lancet 391: 1023-1075.
  43. Kocher F, Hilbe W, Seeber A (2015) Longitudinal analysis of 2293 NSCLC patients: a comprehensive study from the TYROL registry. Lung Cancer 87: 193-200.
  44. Miller KD, Siegel RL, Lin CC, Mariotto AB, Kramer JL, et al. (2016) Cancer treatment and survivorship statistics, 2016. CA Cancer J Clin 66: 271-289.
  45. Siemiatycki J, Karp I, Sylvestre MP, Pintos J. Estimating the proportion of cases of lung cancer legally attributable to smoking: a novel approach for class actions against the tobacco industry. Am J Public Health 104: e60-6.
  46. Remen T, Pintos J, Abrahamowicz M, Siemiatycki J (2014) Risk of lung cancer in relation to various metrics of smoking history: a case-control study in Montreal. BMC Cancer. 18: 1275.
  47. Thun MJ, Carter BD, Feskanich D (2013) 50-year trends in smoking-related mortality in the United States. N Engl J Med 368: 351-364.
  48. Powell HA, Iyen-Omofoman B, Hubbard RB (2013) The association between smoking quantity and lung cancer in men and women. Chest 143: 123-129.
  49. O’Keeffe LM, Taylor G, Huxley RR, Mitchell P, Woodward M, et al. (2018) Smoking as a risk factor for lung cancer in women and men: a systematic review and meta-analysis. BMJ Open 8: e021611.
  50. https://www.lung.org/lung-health-diseases/lung-diseaselookup/lung-cancer/resource-library/lung-cancer-fact-sheet - accessed April 21, 2021.
  51. Wong KY, Seow A, Koh WP (2010) Smoking cessation and lung cancer risk in an Asian population: Findings from the Singapore Chinese Health Study. Br J Cancer 103: 1093-1096.
  52. Tindle HA, Stevenson Duncan M, Greevy RA (2018) Lifetime Smoking History and Risk of Lung Cancer: Results From the Framingham Heart Study [published correction appears in J Natl Cancer Inst. 2018 Oct 1;110(10):1153]. J Natl Cancer Inst. 110: 1201-1207.
  53. Park ER, Japuntich SJ, Rigotti NA, Traeger L, He Y, et al. (2012) A snapshot of smokers after lung and colorectal cancer diagnosis. Cancer 118: 3153-3164.
  54. Capelletto E, Passiglia F, Ferraresi F, Vallone S, Novello S (2020) Improving lung cancer outcomes through smoking cessation: the Women Against Lung Cancer in Europe (WALCE) experience. J Thorac Dis 3877-3882.
  55. Chen J, Qi Y, Wampfler JA, Jatoi A, Garces YI, et al. (2012) Effect of cigarette smoking on quality of life in small cell lung cancer patients. European Journal of Cancer 48: 1593-1601.
  56. Kovacs G, Barsai A, Szilasi M (2012) Smoking: A prognostic factor of lung cancer survival. Magyar Onkologia 56: 187- 191.
  57. Parsons A, Daley A, Begh R, Aveyard P (2010) Influence of smoking cessation after diagnosis of early stage lung cancer on prognosis: Systematic review of observational studies with meta-analysis. BMJ 340: b5569
  58. Terry PD, Rohan TE (2002) Cigarette smoking and the risk of breast cancer in women: a review of the literature. Cancer Epidemiol Biomarkers Prev 11: 953-971.
  59. Johnson KC, Miller AB, Collishaw NE (2011) Active smoking and secondhand smoke increase breast cancer risk: the report of the Canadian expert panel on tobacco smoke and breast cancer risk (2009). Tob Control 20: e2.
  60. Macacu A, Autier P, Boniol M, Boyle P (2015) Active and passive smoking and risk of breast cancer: a meta-analysis. Breast Cancer Res Treat 154: 213-224.
  61. Okasha M, McCarron P, Gunnell D, Smith GD (2003) Exposures in childhood, adolescence and early adulthood and breast cancer risk: a systematic review of the literature. Breast Cancer Res Treat. 78: 223-276.
  62. Johnson KC, Miller AB, Collishaw NE (2011) Active smokingand secondhand smoke increase breast cancer risk: the report of the Canadian Expert Panel on tobacco smoke and breast cancer risk (2009) Tobacco Control 20: e2.
  63. Xu Z, Xu H, Lu Y (2020) Genetic Liability to Smoking and Breast Cancer Risk. Clin Epidemiol 12: 1145-1148.
  64. Pakzad R, Nedjat S, Yaseri M (2020) Effect of Smoking on Breast Cancer by Adjusting for Smoking Misclassification Bias and Confounders Using a Probabilistic Bias Analysis Method. Clin Epidemiol 12: 557-568.
  65. De Blacam C, Ogunleye AA (2012) High body mass index and smoking predict morbidity in breast cancer surgery: A multivariate analysis of 26,988 patients from the national surgical quality improvement program database. Ann. Surg 255: 551-555.
  66. Sharp L, Johansson H (2013) Smoking as an independent risk factor for severe skin reactions due to adjuvant radiotherapy for breast cancer. Breast Edinb. Scotl 22: 634-638.
  67. Jang S, Prizment A (2011) Smoking and quality of life among female survivors of breast, colorectal and endometrial cancers in a prospective cohort study. J. Cancer Surviv. Res. Pract 5: 115-122.
  68. Ricceri F, Fasanelli F (2015) Risk of second primary malignancies in women with breast cancer: Results from the European prospective investigation into cancer and nutrition (EPIC) Int. J. Cancer 137: 940-948.
  69. Prochazka M, Hall P (2005) Ionizing radiation and tobacco use increases the risk of a subsequent lung carcinoma in women with breast cancer: Case-only design. J. Clin. Oncol 23: 7467-7474.
  70. Wang K, Li F (2016) Smoking increases risks of all-cause and breast cancer specific mortality in breast cancer individuals: A dose-response meta-analysis of prospective cohort studies involving 39,725 breast cancer cases. Oncotarget 7: 83134- 83147.
  71. Duan W, Li S, Meng X, Sun Y, Jia C (2017) Smoking and survival of breast cancer patients: A meta-analysis of cohort studies. Breast 33: 117-124.
  72. Eng VA, David SP, Li S, Ally MS, Stefanick M, Tang JY (2020) The association between cigarette smoking, cancer screening, and cancer stage: a prospective study of the women’s health initiative observational cohort. BMJ Open 10: e037945.
  73. Botteri E, Iodice S, Bagnardi V (2008) Smoking and colorectal cancer: a meta-analysis. JAMA 300: 2765-2778.
  74. Limsui D, Vierkant RA, Tillmans LS (2010) Cigarette smoking and colorectal cancer risk by molecularly defined subtypes. J Natl Cancer Inst 102: 1012-1022.
  75. Po-Li Wei, Shyr-Yi Lin, Yu-Jia Chang (2011) Cigarette Smoking and Colorectal Cancer: From Epidemiology to Bench, Journal of Experimental & Clinical Medicine 3: 257- 261.
  76. Lee S, Woo H, Lee J, Oh JH, Kim J, Shin A (2019) Cigarette smoking, alcohol consumption, and risk of colorectal cancer in South Korea: A case-control study. Alcohol 76: 15-21.
  77. Zisman AL, Nickolov A, Brand RE, Gorchow A, Roy HK (2006) Associations between the age at diagnosis and location of colorectal cancer and the use of alcohol and tobacco: implications for screening. Arch Intern Med 166: 629-634.
  78. Liang PS, Chen TY, Giovannucci E (2009) Cigarette smoking and colorectal cancer incidence and mortality: Systematic review and meta-analysis. Int J Cancer 124: 2406-2415.
  79. Yang LP, Wang ZX, Zhang R (2021) Association between cigarette smoking and colorectal cancer sidedness: A multicenter big-data platform-based analysis. J Transl Med 19: 150.
  80. Gram IT, Park SY, Wilkens LR, Haiman CA, Le Marchand L (2020) Smoking-Related Risks of Colorectal Cancer by Anatomical Subsite and Sex. Am J Epidemiol 189: 543-553.
  81. Ordonez-Mena JM, Walter V, Schottker B (2018) Consortium on Health and Ageing: Network of Cohorts in Europe and the United States (CHANCES). Impact of prediagnostic smoking and smoking cessation on colorectal cancer prognosis: a meta-analysis of individual patient data from cohorts within the CHANCES consortium. Ann Oncol 29: 472-483.
  82. Cumberbatch MG, Rota M, Catto JW, La Vecchia C (2016) The role of tobacco smoke in bladder and kidney carcinogenesis: a comparison of exposures and meta-analysis of incidence and mortality risks. Eur Urol 70: 458-466.
  83. Rink M, Xylinas E, Margulis V (2013) Upper Tract Urothelial Carcinoma Collaboration. Impact of smoking on oncologic outcomes of upper tract urothelial carcinoma after radical nephroureterectomy. Eur Urol 63: 1082-1090.
  84. Huncharek M, Haddock KS, Reid R, Kupelnick B (2010) Smoking as a risk factor for prostate cancer: a meta-analysis of 24 prospective cohort studies. Am J Public Health 100: 693-701.
  85. Zapata DF, Howard LE, Aronson WJ (2015) Smoking is a predictor of adverse pathological features at radical prostatectomy: results from the Shared Equal Access Regional Cancer Hospital database. Int J Urol 22: 658-662.
  86. Ngo TC, Lee JJ, Brooks JD, Nolley R, Ferrari M, et al. (2013) Smoking and adverse outcomes at radical prostatectomy. Urol Oncol 31: 749-754.
  87. Foerster B, Pozo C, Abufaraj M (2018) Association of Smoking Status With Recurrence, Metastasis, and Mortality Among Patients With Localized Prostate Cancer Undergoing Prostatectomy or Radiotherapy: A Systematic Review and Meta-analysis. JAMA Oncol 4: 953-961.
  88. Huncharek M, Haddock KS, Reid R, Kupelnick B (2010) Smoking as a risk factor for prostate cancer: a meta-analysis of 24 prospective cohort studies. Am J Public Health 100: 693-701.
  89. De Nunzio C, Andriole GL, Thompson IM Jr, Freedland SJ (2015) Smoking and Prostate Cancer: A Systematic Review. Eur Urol Focus 1: 28-38.
  90. Kenfield SA, Stampfer MJ, Chan JM, Giovannucci E (2011) Smoking and prostate cancer survival and recurrence. JAMA 305: 2548-2555.
  91. Jones MR, Joshu CE, Kanarek N, Navas-Acien A, Richardson KA, et al. (2016) Cigarette Smoking and Prostate Cancer Mortality in Four US States, 1999-2010. Prev Chronic Dis 13: 150454.
  92. Nomura A, Grove JS, Stemmermann GN, Severson RK (1990) “Cigarette smoking and stomach cancer”. Cancer Research 50: 7084.
  93. Tredaniel J, Boffetta P, Buiatti E, Saracci R and Hirsch A (1997) Tobacco smoking and gastric cancer: Review and meta-analysis. Int. J. Cancer 72: 565-573.
  94. Gonzalez CA, Pera G, Agudo A, Palli D, Krogh V, et al. (2003) Smoking and the risk of gastric cancer in the European Prospective Investigation Into Cancer and Nutrition (EPIC) Int J Cancer 107: 629-634.
  95. Praud D, Rota M, Pelucchi C (2018) Cigarette smoking and gastric cancer in the Stomach Cancer Pooling (StoP) Project. Eur J Cancer Prev 27: 124-133.
  96. Huang JQ, Sridhar S, Chen Y, Hunt RH (1998) Meta-analysis of the relationship between Helicobacter pylori seropositivity and gastric cancer. Gastroenterology 114: 1169-1179.
  97. Bae JM, Kim EH (2016) Helicobacter pylori Infection and Risk of Gastric Cancer in Korea: A Quantitative Systematic Review. J Prev Med Public Health 49: 197-204.
  98. Wang XQ, Yan H, Terry PD (2011) Interactions between CagA and smoking in gastric cancer. World J Gastroenterol 17: 3330-3334.
  99. IARC (2004) IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. Tobacco Smoke and Involuntary Smoking 83.
  100. Tanaka K, Tsuji I, Wakai K (2006) Cigarette Smoking and liver cancer risk: an evaluation based on a systematic review of epidemiologic evidence among Japanese. Jpn J Clin Oncol 36: 445-456.
  101. Lee Y CA, Cohet C, Yang YC, Stayner L, Hashibe M, Straif K (2009) Meta-analysis of epidemiologic studies on cigarette smoking and liver cancer. Int J Epidemiol 38: 1497-1511.
  102. Petrick JL, Campbell PT, Koshiol J (2018) Tobacco, alcohol use and risk of hepatocellular carcinoma and intrahepatic cholangiocarcinoma: the liver cancer pooling project. Br J Cancer 118: 1005-1012.
  103. Tu T, Buhler S, Bartenschlager R (2017) Chronic viral hepatitis and its association with liver cancer. Biol Chem 398: 817-837.
  104. Chuang SC, Lee Y CA, Hashibe M, Dai M, Zheng T, Boffetta P (2010) Interaction between cigarette smoking and hepatitis B and C virus infection on the risk of liver cancer: a metaanalysis. Cancer Epidemiol Biomarkers Prev 19: 1261-1268.
  105. Mukaiya M, Nishi M, Miyake H, Hirata K (1998) Chronic liver diseases for the risk of hepatocellular carcinoma: a case-control study in Japan. Etiologic association of alcohol consumption, cigarette smoking and the development of chronic liver diseases. Hepatogastroenterology 45: 2328- 2332.
  106. Cook MB, F Kamangar, DC Whiteman (2010) Cigarette smoking and adenocarcinomas of the esophagus and esophagogastric junction: a pooled analysis from the international BEACON consortium. J Natl Cancer Inst 102: 1344-1353.
  107. Oze I, Matsuo K, Ito H (2012) Research Group for the Development and Evaluation of Cancer Prevention Strategies in Japan. Cigarette smoking and esophageal cancer risk: an evaluation based on a systematic review of epidemiologic evidence among the Japanese population. Jpn J Clin Oncol 42: 63-73.
  108. Bujanda DE, Hachem C (2018) Barrett’s Esophagus. Mo Med 115: 211-213.
  109. Fitzgerald RC (2006) Molecular basis of Barrett’s oesophagus and oesophageal adenocarcinoma. Gut 55: 1810-1820.
  110. S Hardikar, L Onstad, PL Blount, RD Odze, BJ Reid, et al. (2013) The role of tobacco, alcohol, and obesity in neoplastic progression to esophageal adenocarcinoma: a prospective study of Barrett’s esophagus. PLoS One 8: e52192.
  111. Kamarajah SK, Madhavan A, Chmelo J (2021) Impact of Smoking Status on Perioperative Morbidity, Mortality, and Long-Term Survival Following Transthoracic Esophagectomy for Esophageal Cancer. Ann Surg Oncol.
  112. Wang QL, Xie SH, Li WT, Lagergren J (2017) Smoking Cessation and Risk of Esophageal Cancer by Histological Type: Systematic Review and Meta-analysis. J Natl Cancer Inst 109.
  113. Winkelstein W Jr (1977) Smoking and cancer of the uterine cervix: hypothesis. American Journal of Epidemiology 106: 257-259.
  114. Brinton LA, Schairer C, Haenszel W, Stolley P, Lehman HF (1986) Cigarette smoking and invasive cervical cancer. JAMA 255: 3265-3269.
  115. Sood AK (1991) Cigarette smoking and cervical cancer: Meta-analysis and critical review of recent studies. Am. J. Prev. Med 7: 208-213.
  116. Kjellberg L, Hallmans G, Ahren AM, Johansson R, Bergman F, et al. (2000) Smoking, diet, pregnancy and oral contraceptive use as risk factors for cervical intra-epithelial neoplasia in relation to human papillomavirus infection. Br. J. Cancer 82: 1332-1338.
  117. Castellsague X, Munoz N (2003) Chapter 3: Cofactors in human papillomavirus carcinogenesis-role of parity, oral contraceptives, and tobacco smoking. J. Natl. Cancer Inst. Monogr 31: 20-28.
  118. Group IW (2004) IARC Working Group on the Evaluation of Carcinogenic Risks to Humans Tobacco smoke and involuntary smoking. IARC Monogr. Eval. Carcinog 83: 1-1438.
  119. International Collaboration of Epidemiological Studies of Cervical Cancer (2006). Comparison of risk factors for invasive squamous cell carcinoma andadenocarcinoma of the cervix: collaborative reanalysis of individual data on 8,097 women with squamous cell carcinoma and 1,374 women with adenocarcinoma from 12 epidemiological studies. International Journal of Cancer 120: 885-891.
  120. Berrington de Gonzalez A, Sweetland S, Green J (2004) Comparison of risk factors for squamous cell and adenocarcinomas of the cervix: a meta-analysis. Br J Cancer 90: 1787-1791.
  121. Waggoner SE, Darcy KM, Tian C, Lanciano R (2010) Smoking behavior in women with locally advanced cervical carcinoma: a gynecologic oncology group study. American Journal of Obstetrics and Gynecology 202: 283.e1-283.e7.
  122. Mayadev J, Lim J, Durbin-Johnson B, Valicenti R, Alvarez E (2018) Smoking Decreases Survival in Locally Advanced Cervical Cancer Treated With Radiation. Am J Clin Oncol 41: 295-301.
  123. Jose Alberto Fonseca-Moutinho (2011) “Smoking and Cervical Cancer”, International Scholarly Research Notices, 2011: 6.
  124. Castle PE (2016) A prospective study of high-grade cervical neoplasia risk among human papillomavirus-infected women. Journal of the National Cancer Institute. 2002;94:1406-1414.; Wardak S. Human Papillomavirus (HPV) and cervical cancer. Med Dosw Mikrobiol 68: 73-84.
  125. Simen-Kapeu A (2009) Tobacco smoking and chewing as risk factors for multiple human papillomavirus infections and cervical squamous intraepithelial lesions in two countries (cote d’ivoire and finland) with different tobacco exposure. Cancer causes & control : CCC. 20: 163-170.
  126. Koshiol J (2002) Smoking and time to clearance of human papillomavirus infection in hiv-seropositive and hivseronegative women. American journal of epidemiology. 2006;164:176-183; Giuliano AR, et al. Clearance of oncogenic human papillomavirus (hpv) infection: Effect of smoking (united states). Cancer causes & control : CCC 13: 839-846.
  127. Matsumoto K, Oki A, Furuta R (2010) Tobacco smoking and regression of low-grade cervical abnormalities. Cancer Science 101: 2065-2073.
  128. Fang JH, Yu XM, Zhang SH, Yang Y (2018) Effect of smoking on high-grade cervical cancer in women on the basis of human papillomavirus infection studies. J Cancer Res Ther 14: S184-S189.
  129. Sawaya GF, Smith-McCune K, Kuppermann M (2019) Cervical Cancer Screening: More Choices in 2019. JAMA 321: 2018-2019.
  130. Marteau TM, Hankins M, Collins B (2002) Perceptions of risk of cervical cancer and attitudes towards cervical screening:a comparison of smokers and non-smokers. Family Practice 19: 18-22.
  131. Eng VA, David SP, Li S, Ally MS, Stefanick M, Tang JY (2020) The association between cigarette smoking, cancer screening, and cancer stage: a prospective study of the women’s health initiative observational cohort. BMJ Open 10: e037945.
  132. Navarro Silvera SA, Miller AB, Rohan TE (2005) Risk factors for thyroid cancer: a prospective cohort study. Int. J. Cancer 116: 433-438.
  133. Myung SK, Lee CW, Lee J, Kim J, Kim HS (2017) Risk factors for thyroid cancer: a hospital-based case-control study in Korean adults. Cancer Res. Treat 49: 70-78.
  134. Cho YA, Kim J (2014) Thyroid cancer risk and smoking status: a meta-analysis. Cancer Causes Control 25: 1187-1195.
  135. Cho A, Chang Y, Ahn J, Shin H, Ryu S (2018) Cigarette smoking and thyroid cancer risk: a cohort study. Br J Cancer 119: 638-645.
  136. Winslow UC, Rode L, Nordestgaard BG (2015) High tobacco consumption lowers body weight: a Mendelian randomization study of the Copenhagen General Population Study. Int J. Epidemiol 44: 540-550.
  137. Wiersinga WM (2013) Smoking and thyroid. Clin. Endocrinol 79: 145-151.
  138. Boelaert K (2009) The association between serum TSH concentration and thyroid cancer. Endocr. -Relat. Cancer 16: 1065-1072.
  139. International Agency for Research on Cancer (2004) IARC monographs on the evaluation of carcinogenic risks to humans 83.
  140. Silverman D, Devesa SLM, Rothman N (2006) Bladder cancer in Schottenfeld D and Fraumeni JF Jr, eds Cancer epidemiology and prevention. Oxford University Press, New York, NY.
  141. Pitard A (2001) Cigar, pipe, and cigarette smoking and bladder cancer risk in European men. Cancer Causes Control 12: 551-556.
  142. Chamssuddin AK (2013) Evaluation of grade and stage in patients with bladder cancer among smokers and nonsmokers. Arab J Urol 11: 165-168.
  143. Crallan RA, Georgopoulos NT, Southgate J (2006) Experimental models of human bladder carcinogenesis. Carcinogenesis 27: 374-381.
  144. Rink M, Furberg H, Zabor EC, Xylinas E, Babjuk M, et al. (2013) Impact of smoking and smoking cessation on oncologic outcomes in primary non-muscle-invasive bladder cancer. Eur Urol 63: 724-732.
  145. Yuruk E, Tuken M, Colakerol A, Serefoglu EC (2017) The awareness of patients with non - muscle invasive bladder cancer regarding the importance of smoking cessation and their access to smoking cessation programs. Int Braz J Urol 43: 607-614.
  146. Gandini S (2005) Meta-analysis of risk factors for cutaneous melanoma: II. Sun exposure. Eur. J. Cancer Oxf. Engl 41: 45-60.
  147. Gandini S (2005) Meta-analysis of risk factors for cutaneous melanoma: I. Common and atypical naevi. Eur. J. Cancer 41: 28-44.
  148. Gandini S (2005) Meta-analysis of risk factors for cutaneous melanoma: III. Family history, actinic damage and phenotypic factors. Eur. J. Cancer Oxf. Engl 41: 2040-2059.
  149. Dusingize JC, Olsen CM, Pandeya NP (2017) QSkin Study. Cigarette Smoking and the Risks of Basal Cell Carcinoma and Squamous Cell Carcinoma. J Invest Dermatol 137: 1700- 1708.
  150. Kessides MC, Wheless L, Hoffman-Bolton J, Clipp S, Alani RM, et al. (2011) Cigarette smoking and malignant melanoma: a case-control study. J Am Acad Dermatol 64: 84-90.
  151. Sondermeijer L, Lamboo LGE, de Waal AC, Galesloot TE, Kiemeney LALM, et al. (2020) Cigarette Smoking and the Risk of Cutaneous Melanoma: A Case-Control Study. Dermatology 236: 228-236.
  152. Jones MS, Jones PC, Stern SL (2017) The Impact of Smoking on Sentinel Node Metastasis of Primary Cutaneous Melanoma. Ann Surg Oncol 24: 2089-2094.
  153. Cumberbatch MG, Rota M, Catto JW, La Vecchia C (2016) The Role of Tobacco Smoke in Bladder and Kidney Carcinogenesis: A Comparison of Exposures and Metaanalysis of Incidence and Mortality Risks. Eur Urol 70: 458-466.
  154. IARC Working Group on the Evaluation of Carcinogenic Risks to Humans: Personal Habits and Indoor Combustions. Volume 100 E. Lyon, France, International Agency for Research on Cancer, 2012 l US Department of Health and Human Services.
  155. The health consequences of smoking-50 years of progress: A report of the Surgeon General, 2014. https://www. surgeongeneral.gov/library/reports/50-years-of-progress/ index.html
  156. Cumberbatch MG, Rota M, Catto JW (2016) The role of tobacco smoke in bladder and kidney carcinogenesis: A comparison of exposures and meta-analysis of incidence and mortality risks. Eur Urol 70: 458-466.
  157. Hunt JD, van der Hel OL, McMillan GP (2005) Renal cell carcinoma in relation to cigarette smoking:Meta-analysis of 24 studies. Int J Cancer 114: 101-108.
  158. Dy GW, Gore JL, Forouzanfar MH (2017) Global burden of urologic cancers, 1990-2013. Eur Urol 71: 437-446.
  159. Cumberbatch MG, Rota M, Catto JW, La Vecchia C (2016) The Role of Tobacco Smoke in Bladder and Kidney Carcinogenesis: A Comparison of Exposures and Metaanalysis of Incidence and Mortality Risks. Eur Urol 70: 458-466.
  160. Hunt JD, van der Hel OL, McMillan GP (2005) Renal cell carcinoma in relation to cigarette smoking:Meta-analysis of 24 studies. Int J Cancer 114:101-108.
  161. Alsamarrai A, Das SL, Windsor JA, Petrov MS (2014) Factors that affect risk for pancreatic disease in the general population: a systematic review and meta-analysis of prospective cohort studies. Clin Gastroenterol Hepatol 12: 1635-1644. 162.Iodice S, Gandini S, Maisonneuve P, Lowenfels AB (2008) Tobacco and the risk of pancreatic cancer: a review and metaanalysis. Langenbecks Arch Surg 393: 535-545.
  162. Ordonez-Mena JM, Schottker B, Mons U (2016) Quantification of the smoking-associated cancer risk with rate advancement periods: meta-analysis of individual participant data from cohorts of the CHANCES consortium. BMC Med 14: 62.
  163. Vrieling A, Bueno-de-Mesquita HB, Boshuizen HC, Michaud DS, Severinsen MT, et al. (2010) Cigarette smoking, environmental tobacco smoke exposure and pancreatic cancer risk in the European Prospective Investigation into Cancer and Nutrition. Int J Cancer 126: 2394-2403.
  164. https://www.cancer.org/content/dam/cancer-org/research/ cancer-facts-and-statistics/annual-cancer-facts-andfigures/2017/cancer-facts-and-figures-2017-special-sectionrare-cancers-in-adults.pdf
  165. https://www.cancer.org/research/cancer-facts-statistics/all-cancer-facts-figures/cancer-facts-figures-2017.html
  166. Musselman JR, Blair CK, Cerhan JR, Nguyen P, Hirsch B, Ross JA (2013) Risk of adult acute and chronic myeloid leukemia with cigarette smoking and cessation. Cancer Epidemiol 37: 410-416.
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