Association of benign thyroid diseases with thyroid cancer risk: a meta-analysis of prospective observational studies

Evidence showed that benign thyroid disease was one of the risk factors for thyroid cancer. However, the results of some studies were inconsistent and were previously meta-analyses of case–control studies. Therefore, we performed a meta-analysis of prospective studies to investigate the relationship between benign thyroid diseases and thyroid cancer risk. All eligible studies were identified via systematic searches of multiple literature...