STK11 and neoplasm: However, LKB1 expression had no significant association with age (<60 vs ≥60, OR = 1.073, 95% CI:0.639–1.800, P = .790), gender (male vs. female, OR = 0.997, 95% CI: 0.756–1.314, P = .981), histopathological stage (I-II vs III-IV, OR = 0.814, 95% CI: 0.596–1.112, P = .196), tumor stage (T1-T2 vs T3-T4, OR = 0.729, 95% CI: 0.262–2.029, P = .545) (Table 3).