NDLI: Obesity in relation to lung cancer incidence in African American women

Content Provider	Springer Nature Link
Author	Bethea, Traci N. Rosenberg, Lynn Charlot, Marjory O’Conr, George T. Adams Campbell, Lucile L. Palmer, Julie R.
Copyright Year	2013
Abstract	Although a number of studies have found an inverse association between body mass index (BMI) and risk of lung cancer, there is little information on this relation in African Americans, who experience a higher incidence of lung cancer.We assessed the relation of BMI to incidence of lung cancer in the Black Women’s Health Study, an ongoing prospective follow-up of 59,000 women in the USA. Cox proportional hazard models were used to estimate hazard ratios for various levels of BMI relative to BMI 18.5–24.9 kg/m2 (“normal weight”) with adjustment for age, education, pack-years of smoking, and other covariates. Two other anthropometric measures, waist circumference (WC) and waist/hip ratio (WHR), were also assessed. A total of 323 primary lung cancer cases were identified from 1995 to 2011.The hazard ratio (HR) for BMI ≥30 relative to BMI 18.5–24.9 was 0.69 (95 % CI 0.51–0.92). As expected, cigarette smoking was strongly associated with increased risk of lung cancer. In analyses stratified by smoking status, the HR for BMI ≥30 relative to BMI 18.5–24.9 was 0.62 (0.38–1.00) among current smokers, 0.90 (0.56–1.42) among former smokers, and 0.83 (0.41–1.70) among never smokers (p for interaction = 0.28). Control for pack-years of smoking or age started smoking had little effect on the hazard ratios. WC and WHR were not materially associated with lung cancer risk.Our results indicate that high BMI is associated with a lower risk of lung cancer in African American women, particularly among current smokers.
Starting Page	1695
Ending Page	1703
Page Count	9
File Format	PDF
ISSN	09575243
Journal	Cancer Causes & Control
Volume Number	24
Issue Number	9
e-ISSN	15737225
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-06-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Body mass index Cigarette smoking Lung cancer Epidemiology African Americans Cohort studies Cancer Research Biomedicine general Oncology Public Health Hematology
Content Type	Text
Resource Type	Article
Subject	Cancer Research Oncology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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