Fig. 3
From: Effect of body mass index on survival of patients with stage I non-small cell lung cancer
Kaplan–Meier OS curves of stage I NSCLC patients in the overweight group and other groups in combination stratified by smoking status and T stage. a The OS was longer in the overweight group than in other groups in combination (P = 0.001); b in non-smoking patients, the OS was longer in the overweight group than in other groups in combination (P = 0.001); c in smoking patients, the difference in OS was insignificant between the overweight group and other groups in combination (P = 0.083); d in patients with T1a stage NSCLC, the OS was longer in the overweight group than in other groups in combination (P = 0.024); e in patients with T1b stage NSCLC, the difference in OS was insignificant between the overweight group and other groups in combination (P = 0.051); and f in patients with T2a stage NSCLC, the OS of the overweight group was longer than that of other groups in combination (P = 0.020)