Obesity and risk of thyroid cancer: evidence from a meta-analysis of 21 observational studies.

ABSTRACT:

Background

Several studies have evaluated the association between obesity and thyroid cancer risk. However, the results remain uncertain. In this study, we conducted a meta-analysis to assess the association between obesity and thyroid cancer risk.

Material/methods

Published literature from PubMed, EMBASE, Springer Link, Ovid, Chinese Wanfang Data Knowledge Service Platform, Chinese National Knowledge Infrastructure (CNKI), and Chinese Biology Medicine (CBM) were retrieved before 10 August 2014. We included all studies that reported adjusted risk ratios (RRs), hazard ratios (HRs) or odds ratios (ORs), and 95% confidence intervals (CIs) of thyroid cancer risk.

Results

Thirty-two studies (n=12 620 676) were included in this meta-analysis. Obesity was associated with a s

SUBMITTER: Ma J 

PROVIDER: S-EPMC4315628 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature