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Body weight, fat distribution and colorectal cancer risk: a report from cohort studies of 134255 Chinese men and women.
Int J Obes (Lond). 2013 Jun; 37(6):783-9.IJ

Abstract

OBJECTIVE

The objective was to evaluate the association of body size and fat distribution with the risk of colorectal cancer (CRC) in Chinese men and women.

DESIGN

This was a population-based, prospective cohort study.

SUBJECTS

The analysis included 134,255 Chinese adults enrolled in the Shanghai Women's Health Study and the Shanghai Men's Health Study, with an average follow-up of 11.0 and 5.5 years, respectively.

MEASUREMENTS

Waist circumference (WC), body mass index (BMI) and waist-to-hip ratio (WHR) were measured by trained interviewers at baseline. Multivariable Cox models were used to calculate adjusted hazard ratios (HRs) for incident CRC.

RESULTS

A total of 935 incident CRC cases were identified. Both measures of general adiposity (measured by BMI) and central adiposity (measured by WHR and WC) were significantly associated with an increased risk of colon cancer in men but not in women. Multivariable-adjusted HRs for colon cancer in men in the highest compared with the lowest quintiles were 2.15 (95% confidence interval (CI): 1.35-3.43; P for trend=0.0006) for BMI, 1.97 (95% CI: 1.19-3.24; P for trend=0.0004) for WHR and 2.00 (95% CI: 1.21-3.29; P for trend=0.0002) for WC. The BMI-associated risk was attenuated in analyses stratified by WHR, whereas the WHR-associated risk remained significant in the high BMI stratum (HR for comparison of extreme tertiles of WHR: 3.38, 95% CI: 1.47-7.75; P for trend =0.0002). None of these anthropometric measures were significantly associated with rectal cancer.

CONCLUSION

Obesity, particularly central obesity, was associated with an increased risk of colon cancer in men.

Authors+Show Affiliations

Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

22986684

Citation

Li, H, et al. "Body Weight, Fat Distribution and Colorectal Cancer Risk: a Report From Cohort Studies of 134255 Chinese Men and Women." International Journal of Obesity (2005), vol. 37, no. 6, 2013, pp. 783-9.
Li H, Yang G, Xiang YB, et al. Body weight, fat distribution and colorectal cancer risk: a report from cohort studies of 134255 Chinese men and women. Int J Obes (Lond). 2013;37(6):783-9.
Li, H., Yang, G., Xiang, Y. B., Zhang, X., Zheng, W., Gao, Y. T., & Shu, X. O. (2013). Body weight, fat distribution and colorectal cancer risk: a report from cohort studies of 134255 Chinese men and women. International Journal of Obesity (2005), 37(6), 783-9. https://doi.org/10.1038/ijo.2012.152
Li H, et al. Body Weight, Fat Distribution and Colorectal Cancer Risk: a Report From Cohort Studies of 134255 Chinese Men and Women. Int J Obes (Lond). 2013;37(6):783-9. PubMed PMID: 22986684.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Body weight, fat distribution and colorectal cancer risk: a report from cohort studies of 134255 Chinese men and women. AU - Li,H, AU - Yang,G, AU - Xiang,Y-B, AU - Zhang,X, AU - Zheng,W, AU - Gao,Y-T, AU - Shu,X-O, PY - 2012/9/19/entrez PY - 2012/9/19/pubmed PY - 2016/5/19/medline SP - 783 EP - 9 JF - International journal of obesity (2005) JO - Int J Obes (Lond) VL - 37 IS - 6 N2 - OBJECTIVE: The objective was to evaluate the association of body size and fat distribution with the risk of colorectal cancer (CRC) in Chinese men and women. DESIGN: This was a population-based, prospective cohort study. SUBJECTS: The analysis included 134,255 Chinese adults enrolled in the Shanghai Women's Health Study and the Shanghai Men's Health Study, with an average follow-up of 11.0 and 5.5 years, respectively. MEASUREMENTS: Waist circumference (WC), body mass index (BMI) and waist-to-hip ratio (WHR) were measured by trained interviewers at baseline. Multivariable Cox models were used to calculate adjusted hazard ratios (HRs) for incident CRC. RESULTS: A total of 935 incident CRC cases were identified. Both measures of general adiposity (measured by BMI) and central adiposity (measured by WHR and WC) were significantly associated with an increased risk of colon cancer in men but not in women. Multivariable-adjusted HRs for colon cancer in men in the highest compared with the lowest quintiles were 2.15 (95% confidence interval (CI): 1.35-3.43; P for trend=0.0006) for BMI, 1.97 (95% CI: 1.19-3.24; P for trend=0.0004) for WHR and 2.00 (95% CI: 1.21-3.29; P for trend=0.0002) for WC. The BMI-associated risk was attenuated in analyses stratified by WHR, whereas the WHR-associated risk remained significant in the high BMI stratum (HR for comparison of extreme tertiles of WHR: 3.38, 95% CI: 1.47-7.75; P for trend =0.0002). None of these anthropometric measures were significantly associated with rectal cancer. CONCLUSION: Obesity, particularly central obesity, was associated with an increased risk of colon cancer in men. SN - 1476-5497 UR - https://www.unboundmedicine.com/medline/citation/22986684/Body_weight_fat_distribution_and_colorectal_cancer_risk:_a_report_from_cohort_studies_of_134255_Chinese_men_and_women_ L2 - http://dx.doi.org/10.1038/ijo.2012.152 DB - PRIME DP - Unbound Medicine ER -