Groups information

Group name

Drain

Groups definition

patients treated by the remaining seven surgeons who routinely placed pelvic drains.

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

1

24 (5%)

2

40 (8%)

3

12 (2%)

4

7 (1%)

5

0 (0%)

CCI remark

n (%)

Risk classification

Institutes for Systems Genetics, West China Hospital
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