Comparison of general obesity and measures of body fat distribution in older adults in relation to cancer risk

• Verfasst von: Freisling, Heinz [VerfasserIn]
• Verfasst von: Ordóñez Mena, José M. [VerfasserIn]
• Verfasst von: Brenner, Hermann [VerfasserIn]
• Titel: Comparison of general obesity and measures of body fat distribution in older adults in relation to cancer risk
• Titelzusatz: meta-analysis of individual participant data of seven prospective cohorts in Europe
• Verf.angabe: Heinz Freisling, Melina Arnold, Isabelle Soerjomataram, Mark George O'Doherty, José Manuel Ordóñez-Mena, Christina Bamia, Ellen Kampman, Michael Leitzmann, Isabelle Romieu, Frank Kee, Konstantinos Tsilidis, Anne Tjønneland, Antonia Trichopoulou, Paolo Boffetta, Vassiliki Benetou, H. B(as) Bueno-de-Mesquita, José María Huerta, Hermann Brenner, Tom Wilsgaard and Mazda Jenab
• E-Jahr: 2017
• Jahr: 25 April 2017
• Umfang: 12 S.
• Teil: volume:116
• Teil: year:2017
• Teil: number:11
• Teil: pages:1486-1497
• Teil: extent:12
• Fussnoten: Gesehen am 31.05.2017
• Titel Quelle: Enthalten in: British journal of cancer
• Ort Quelle: Edinburgh : Nature Publ. Group, 1999
• Jahr Quelle: 2017
• Band/Heft Quelle: 116(2017), 11, Seite 1486-1497
• ISSN Quelle: 1532-1827
• DOI: doi:10.1038/bjc.2017.106
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: ageing
• Sach-SW: body fat distribution
• Sach-SW: cancer
• Sach-SW: CHANCES consortium
• Sach-SW: cohort
• Sach-SW: obesity
• Sach-SW: prevention
• K10plus-PPN: 1559169060

Abstract

Background: We evaluated the associations of anthropometric indicators of general obesity (body mass index, BMI), an established risk factor of various cancer, and body fat distribution (waist circumference, WC; hip circumference, HC; and waist-to-hip ratio, WHR), which may better reflect metabolic complications of obesity, with total obesity-related and site-specific (colorectal and postmenopausal breast) cancer incidence. Methods: This is a meta-analysis of seven prospective cohort studies participating in the CHANCES consortium including 18 668 men and 24 751 women with a mean age of 62 and 63 years, respectively. Harmonised individual participant data from all seven cohorts were analysed separately and alternatively for each anthropometric indicator using multivariable Cox proportional hazards models. Results: After a median follow-up period of 12 years, 1656 first-incident obesity-related cancers (defined as postmenopausal female breast, colorectum, lower oesophagus, cardia stomach, liver, gallbladder, pancreas, endometrium, ovary, and kidney) had occurred in men and women. In the meta-analysis of all studies, associations between indicators of adiposity, per s.d. increment, and risk for all obesity-related cancers combined yielded the following summary hazard ratios: 1.11 (95% CI 1.02-1.21) for BMI, 1.13 (95% CI 1.04-1.23) for WC, 1.09 (95% CI 0.98-1.21) for HC, and 1.15 (95% CI 1.00-1.32) for WHR. Increases in risk for colorectal cancer were 16%, 21%, 15%, and 20%, respectively per s.d. of BMI, WC, HC, and WHR. Effect modification by hormone therapy (HT) use was observed for postmenopausal breast cancer (Pinteraction<0.001), where never HT users showed an ~20% increased risk per s.d. of BMI, WC, and HC compared to ever users. Conclusions: BMI, WC, HC, and WHR show comparable positive associations with obesity-related cancers combined and with colorectal cancer in older adults. For postmenopausal breast cancer we report evidence for effect modification by HT use.