Groups information

Group name

Arm I ND

Groups definition

patient with no drain placement

Baseline information

Age

63.6 (56.8–68.8)

Age remark

Median (IQR)

BMI

28.6 (26.0-30.8)

BMI remark

Median (IQR)

American Society of Aneshesiologists (ASA) physical status classification
Charlson comorbidity index (CCI)

average CCI

0 (0)

CCI remark

Median (IQR)

Risk classification

low

21 (22.8)

intermediate

52 (56.5)

high

19 (20.7)

Risk remark

D’Amico risk (%)