RT Journal Article
SR Electronic
T1 Effect of Obesity on Survival of Women With Epithelial Ovarian Cancer: A Systematic Review and Meta-Analysis of Observational Studies
JF International Journal of Gynecologic Cancer
JO Int J Gynecol Cancer
FD BMJ Publishing Group Ltd
SP 1525
OP 1532
DO 10.1097/IGC.0b013e31822eb5f8
VO 21
IS 9
A1 Hyun-Sik Yang
A1 Chan Yoon
A1 Seung-Kwon Myung
A1 Sang Min Park
YR 2011
UL http://ijgc.bmj.com/content/21/9/1525.abstract
AB Objective Although obesity is shown to be a risk factor for epithelial ovarian cancer, its role as a prognostic factor has been remained inconclusive. In this study, available evidences on this matter to date have been assembled for a meta-analysis to determine the effect of obesity on the survival of patients with epithelial ovarian cancer.Materials and Methods Eligible studies published up to December 2010 were searched using MEDLINE (PubMed), EMBASE, and Cochrane Central Register of Controlled Trials, and manual review of relevant bibliography to look for additional studies was done. Adjusted hazard ratios (HRs) from individual studies were pooled using a random-effects model.Results Ten cohort studies of 331 screened articles were included in the final analysis. The meta-analysis showed overweight or obesity at early adulthood to be associated with higher mortality among patients with ovarian cancer (HR, 1.60; 95% confidence interval, 1.10–2.34). Among patients with advanced ovarian cancer, premorbid obesity was associated with worse prognosis (HR, 1.45; 95% confidence interval, 1.09–1.93). However, there was no significant relationship between prognosis and obesity around the time of diagnosis.Conclusions This study suggests a possible relationship between obesity at early adulthood and higher mortality among patients with ovarian cancer. Further studies are needed to elucidate the harmful effect of obesity on the survival of patients with ovarian cancer.