Research Paper Volume 12, Issue 23 pp 23778—23794

Figure 1. Obesity is an independent prognostic factor for improved overall survival. (A) The association of BMI and Overall Survival (OS) performed by Kaplan-Meier analysis. Patients were divided into 3 groups according to WHO standard (normal weight: BMI<25, overweight: 25≤BMI<30 and obesity: BMI≥30 kg/m²). (B) All patients redistributed into 2 groups (combined normal weight and overweight patients as normal group: BMI<30 vs obesity group: BMI≥30 kg/m²) and performed by Kaplan-Meier analysis. (C) Disease-Free Survival of normal group and obesity group performed by Kaplan-Meier analysis. (D) Progression-Free Survival of normal group and obesity group performed by Kaplan-Meier analysis. (E) Risk factors of OS analyzed by univariate Cox regression model. (F) Risk factors of OS analyzed by multivariate Cox regression model. (^*p<0.05, ^**p<0.01, ^***p<0.001).