This result was consistent with the latest meta‐analysis in 2012, which used 22 articles, that suggested XRCC1 rs25487 GA and AA genotypes could influence overall survival of lung cancer patients [GA vs. GG: HR (95% CI) = 1.23 (1.06–1.44); AA vs. GG: HR (95% CI) = 2.03 (1.20–3.45)] 23. Here, XRCC1 is linked to lung carcinoma.