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Operation information.
| Non-Events | Events | P - value | |
|---|---|---|---|
| Main surgical sites, n (%) | 0·442 | ||
| Esophageal | 2 (0·2) | 0 (0) | |
| Gastric | 113 (9·4) | 7 (12·5) | |
| Intestinal | 22 (1·8) | 2 (3·6) | |
| Colorectum | 1063 (88·4) | 47 (83·9) | |
| Anal tube | 3 (0·2) | 0 (0) | |
| Laparoscope, n (%) | 1023 (85) | 41 (73·2) | 0·017* |
| Operation time (minutes), means ± SD | 222·9 ± 95·7 | 216·8 ± 81·6 | 0·668 |
| Anesthesia time (minutes), means ± SD | 273·6 ± 95·8 | 255·1 ± 91·0 | 0·156 |
n, number; *P ≤ 0·05.
