BRCA1 and non-small cell lung carcinoma: Despite the limitations of this meta-analysis, our study confirmed that low/negative BRCA1 expression was associated with better objective response rate (ORR) and longer overall survival (OS) and event-free survival (EFS) in NSCLC patients treated with platinum-containing regimen, while high/positive BRCA1 level were associated with better objective response rate in toxal contained regimen.