430438.fig.008a
(a)
430438.fig.008b
(b)
Figure 8: The Kaplan-Meier curves using classification into four groups according to BMI (BMI ≥ 30 kg/m2 ( ), 30 kg/m2 > BMI ≥ 25 kg/m2 ( ), 25 kg/m2 > BMI ≥ 18.5 kg/m2 ( ), and BMI < 18.5 kg/m2 ( )). In terms of overall survival ( ) and recurrence-free survival ( ), the overall difference in these four groups did not reach significance ((a) and (b)).