作者: Xiujuan Wu , Jing Tang , Mingjun Xie , None
DOI: 10.1038/SREP12249
关键词:
摘要: Many studies have investigated the association between serum/hair zinc levels and breast cancer, but results were inconsistent. To compare serum hair in women with cancer controls, we conducted a systematic literature search of PubMed, Web Science, Cochrane Library Embase to identify relevant publication dates up through November 2014. Based on random effects model, summary standard mean differences (SMDs) corresponding 95% confidence intervals (CIs) used controls. Fourteen that seven assessed included. Our study observed no difference cases controls (SMD (95%CI): −0.65[−1.42,0.13]). However, determined lower compared those −1.99[−3.46, −0.52]). In conclusion, this was first provide evidence female patients are than controls; however, there significant