BRCA1 and lung cancer: With odds ratios (ORs) ranging from 4‐fold (BRCA1: OR, 4.193; 95%CI, 1.382–10.768) to 29‐fold (TP53: OR, 29.281; 95%CI, 1.523–1705.506), P/LP variants in the BRCA1 and TP53 genes were discovered to be strongly related to increased lung cancer risk.