Is body size associated with ovarian cancer in southern Chinese women?

To investigate the association between risk of ovarian cancer and body size among southern Chinese women. A hospital-based case-control study was undertaken in Guangzhou, Guangdong Province, from 2006 to 2008. Participants were 500 incident ovarian cancer patients and 500 controls, with a mean age of 59 years. Information on adult height and weight was obtained via face-to-face interview using a structured questionnaire. Logistic regression analyses were performed to assess the association between anthropometric factors and the ovarian cancer risk. Compared with women having body weight a parts per thousand currency sign50 kg and body mass index (BMI) < 18.5 kg/m(2), the adjusted odds ratios (ORs) of ovarian cancer were 1.84 (95 % confidence interval (CI) 1.34-2.54) and 1.77 (95 % CI 1.04-3.02) in those women who had body weight > 55 kg and BMI a parts per thousand yen23 kg/m(2), respectively. Significant dose-response relationships were also observed for both weight and BMI (p < 0.01). Body height was not significantly associated with ovarian cancer risk. Body weight and BMI were associated with increased risk of ovarian cancer in southern Chinese women.