Groups information

Group name

Overweight

Groups definition

BMI 25-29.9

Groups remarks

Subjects were divided into four categories according to preoperative BMI (kg/m2): normal (BMI < 25), overweight (BMI 25-29.9), mildly obese (BMI 30-34.9), and severely obese (BMI > 35)

Clinical T stage

T1

666 (84.2)

T2-T3

125 (15.8)

p-value

0.74

N stage, M stage