Groups information

Group name

Normal

Groups definition

BMI < 25

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

300 (83.1)

T2-T3

61 (16.9)

p-value

0.74

N stage, M stage