NDLI: Urinary bladder cancer risk factors in Egypt: a multicenter case-control study.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zheng, Yun-Ling Amr, Sania Saleh, Doa'a A. Dash, Chiranjeev Ezzat, Sameera Mikhail, Nabiel N. Gouda, Iman Loay, Iman Hifnawy, Tamer Abdel-Hamid, Mohamed Khaled, Hussein Wolpert, Beverly Abdel-Aziz, Mohamed A. Loffredo, Christopher A.
Spatial Coverage	Egypt
Description	Country affiliation: United States Author Affiliation: Zheng YL ( Carcinogenesis, Biomarkers and Epidemiology Program, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia 20057, USA.)
Abstract	BACKGROUND: We investigated associations between tobacco exposure, history of schistosomiasis, and bladder cancer risk in Egypt. METHODS: We analyzed data from a case-control study (1,886 newly diagnosed and histologically confirmed cases and 2,716 age-, gender-, and residence-matched, population-based controls). Using logistic regression, we estimated the covariate-adjusted ORs and 95% confidence interval (CI) of the associations. RESULTS: Among men, cigarette smoking was associated with an increased risk of urothelial carcinoma (OR = 1.8; 95% CI, 1.4-2.2) but not squamous cell carcinoma (SCC); smoking both water pipes and cigarettes was associated with an even greater risk for urothelial carcinoma (OR = 2.9; 95% CI, 2.1-3.9) and a statistically significant risk for SCC (OR = 1.8; 95% CI, 1.2-2.6). Among nonsmoking men and women, environmental tobacco smoke exposure was associated with an increased risk of urothelial carcinoma. History of schistosomiasis was associated with increased risk of both urothelial carcinoma (OR = 1.9; 95% CI, 1.2-2.9) and SCC (OR = 1.9; 95% CI, 1.2-3.0) in women and to a lesser extent (OR = 1.4; 95% CI, 1.2-1.7 and OR = 1.4; 95% CI, 1.1-1.7, for urothelial carcinoma and SCC, respectively) in men. CONCLUSIONS: The results suggest that schistosomiasis and tobacco smoking increase the risk of both SCC and urothelial carcinoma. IMPACT: This study provides new evidence for associations between bladder cancer subtypes and schistosomiasis and suggests that smoking both cigarettes and water pipes increases the risk for SCC and urothelial carcinoma in Egyptian men.
File Format	HTM / HTML
ISSN	10559965
e-ISSN	15387755
DOI	10.1158/1055-9965.EPI-11-0589
Journal	Cancer Epidemiology Biomarkers & Prevention
Issue Number	3
Volume Number	21
Language	English
Publisher	American Association for Cancer Research
Publisher Date	2012-03-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Cancer epidemiology Adenocarcinoma Etiology Carcinoma, Squamous Cell Schistosomiasis Complications Tobacco Smoke Pollution Adverse Effects Urinary Bladder Neoplasms Case-control Studies Egypt Comparative Study Multicenter Study Randomized Controlled Trial Research Support, N.i.h., Extramural
Content Type	Text
Resource Type	Article
Subject	Epidemiology Oncology

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Urinary bladder cancer risk factors in Egypt.

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