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Associations of Most Prevalent Risk Factors with Lung Cancer and Their Impact on Survival Length

  • Khan, Mohammad Haroon (Molecular Biology and Bioinformatics Research Group, Department of Bioinformatics and Biosciences, Capital University of Science and Technology) ;
  • Hussain, Shahid (Molecular Biology and Bioinformatics Research Group, Department of Bioinformatics and Biosciences, Capital University of Science and Technology) ;
  • Bano, Raisa (Molecular Biology and Bioinformatics Research Group, Department of Bioinformatics and Biosciences, Capital University of Science and Technology) ;
  • Jamshed-ul-Hassan, Hafiz (Molecular Biology and Bioinformatics Research Group, Department of Bioinformatics and Biosciences, Capital University of Science and Technology) ;
  • Aadil ur Rehman, Muhammad (Department of Computer Sciences, Capital University of Science and Technology)
  • Published : 2016.06.01

Abstract

Lung cancer is one of the most common malignancies in the world. Its incidence and mortality rates are on the rise in Pakistan. However, epidemiological studies to identify common lung cancer determinants in the Pakistani population have been limited. In this study, data of 440 cases and 323 controls were collected from different hospitals in Peshawar and Islamabad, along with information about socio-demographic factors including age, sex and smoking. Univariate and multi-factorial analyses of socio-demographic factors in association with each other were also performed. Overall survival analysis highlighted that, out of 440 patients in the lung cancer dataset, 204 people were uncensored with a median survival time of 13 months (95% CI=12-18). There were 41 femaleand 399 male patients. Differences were observed between length of survival in the males and females (${\chi}12$ = 6.1; p-value = 0.01). Gender was observed to be significantly related to survival (p-value< 0.01), with better survival in females (hazard ratio=2). Cox regression was extended to adjust for the covariate age (z = 2.5; p-value = 0.02). Survival analysis was also performed on the basis of smoking groups (current smokers, former smokers and never smoked individuals) and smoking duration (smoking duration >10 years, <10 years and never smoked). Smoking duration was significantly associated with survival (p-value < 0.01), with better survival in never smokers in comparison to both smoking for greater or less than 10 years. Strong associations were observed for smoking group with duration greater than 10 years, OR=6.1(3.9-9.5) on univariate and multifactorial analysis OR=11.3(CI=6.8-19.3).

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References

  1. Ahmed K, Abdullah AlE, Jesmin T, et al (2013). Early detection of lung cancer risk using data mining.Asian Pac J Cancer Prev,14, 595-8. https://doi.org/10.7314/APJCP.2013.14.1.595
  2. Alam, SE (1998). Prevalence and pattern of smoking in Pakistan. journal of Pakistan. J Pak Med Assoc, 48, 64-6.
  3. Bailey WJE, Amos CI, Pinney SM, et al, (2004). A major lung cancer susceptibility locus maps to chromosome 6q23-25. Am J Hum Genet,75, 460-74. https://doi.org/10.1086/423857
  4. Bhaskarapillai B, Kumar SS, Balasubramanian S (2013). Lung cancer in malabar cancer center in kerala- a descriptive analysis. Asian Pac J Cancer Prev, 13, 4639-43.
  5. Bruske HI, Mohner M, Pohlabeln H, et al (2000). Occupational lung cancer risk for men in Germany, results from a pooled case-control study. Am J Epidemiol, 151, 384-95. https://doi.org/10.1093/oxfordjournals.aje.a010218
  6. Ferreccio C, Gonzalez C, Milosavjlevic V, et al (2000). Lung cancer and arsenic concentrations in drinking water in Chile. Epidemiology, 11, 673-9. https://doi.org/10.1097/00001648-200011000-00010
  7. Ganesh B, Sushama S, Monika S, et al (2011 ). A case-control study of risk factors for lung cancer in Mumbai, India. Asian Pac J Cancer Prev, 12, 357-62.
  8. Hashibe M, Siwakoti B, Wei1 M, et al (2010). Socioeconomic status and lung cancer risk in Nepal. Asian Pac J Cancer Prev, 12, 1083-8.
  9. Hussain MR, Khan SA, Bukhari MH (2009). Role of smoking in primary pulmonary alignancies in central punjab. Annals, 17, 18-21.
  10. International Agency for Research on Cancer, IARC (2012). diesel engine exhaust carcinogenic (press release no 213), Lyon, France.
  11. Kwong SL, Chen MS, Snipes KP, et al (2005). Asian subgroups and cancer incidence and mortality rates in California. Cancer, 12, 2598-975.
  12. Lam WK (2005). Lung cancer in Asian women, the environment and genes. Respirology, 4, 408-17.
  13. Matteis DS, Consonni D, Pesatori AC, et al (2013). Are women who smoke at higher risk for lung cancer than men who smoke. Am J Epidemiol, 7, 601-12.
  14. Rennert G, Rennert HS, Epstein L (1982). Lung cancer histology in Jews and Arabs in Israel. Am Rev Respir Dis, 143, 721-6.
  15. Stellman SD, Takezaki T, Wang L, et al (2001). Smoking and lung cancer risk in American and Japanese men: an international case -control study. Cancer Epidemiol Biomarkers Prev, 11, 1193-9.
  16. Sun S, Schiller JH, Gazdar AF (2007). Lung cancer in never smokers, a different disease. Nature Rev, 7, 778-90.
  17. Tas D, Okutan O, Kaya H, et al (2008). Analysis of 138 cases of lung cancer in a training hospital compared to the data of lung cancer cases diagnosed ten years previously. Marmara Med J, 213, 231-7.
  18. Wahab M, Boroumand N, Castro C, et al (2007). Changing trends in the distribution of the histologic types of lung cancer, a review of 4,439 cases. Ann Diagn Pathol, 112, 89-96.
  19. Wahbah M, Boroumand N, Castro C, et al (2007). Changing trends in the distribution of the histologic types of lung cancer: a review of 4,439 cases. Ann Diagn Pathol, 11, 89-96. https://doi.org/10.1016/j.anndiagpath.2006.04.006