OBJECTIVES: Ovarian cancer is a highly fatal gynecologic malignancy. Prognosis is primarily based on clinicopathologic features. There is interest in the role of modifiable factors including overweight and obesity, although data to date have been inconclusive. Here we evaluate the relationship between body size and ovarian cancer survival among 1423 women diagnosed with epithelial ovarian cancer in a large population-based study. METHODS: Information on risk factors and characteristics was collected by telephone. Vital status was determined both by computerized record-linkage and by chart review. Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for height, weight and body mass index (BMI) in association with ovarian cancer-specific mortality. RESULTS: Height, weight and BMI 5 years prior to diagnosis did not significantly predict ovarian cancer survival in this study. The HR for ovarian cancer-specific mortality for women with a weight of >61 kg compared with >50-55 kg was 0.91 (95%CI 0.71-1.20). The HR among women with a BMI≥30 kg/m2 compared to 18.5-<25 kg/m2 was 1.11 (95%CI 0.87-1.42). These findings did not vary by histologic subtype. CONCLUSIONS: Our results do not support a role of height, adult weight or adiposity in ovarian cancer prognosis.
OBJECTIVES:Ovarian cancer is a highly fatal gynecologic malignancy. Prognosis is primarily based on clinicopathologic features. There is interest in the role of modifiable factors including overweight and obesity, although data to date have been inconclusive. Here we evaluate the relationship between body size and ovarian cancer survival among 1423 women diagnosed with epithelial ovarian cancer in a large population-based study. METHODS: Information on risk factors and characteristics was collected by telephone. Vital status was determined both by computerized record-linkage and by chart review. Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for height, weight and body mass index (BMI) in association with ovarian cancer-specific mortality. RESULTS: Height, weight and BMI 5 years prior to diagnosis did not significantly predict ovarian cancer survival in this study. The HR for ovarian cancer-specific mortality for women with a weight of >61 kg compared with >50-55 kg was 0.91 (95%CI 0.71-1.20). The HR among women with a BMI≥30 kg/m2 compared to 18.5-<25 kg/m2 was 1.11 (95%CI 0.87-1.42). These findings did not vary by histologic subtype. CONCLUSIONS: Our results do not support a role of height, adult weight or adiposity in ovarian cancer prognosis.
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