Table 5.
Patient characteristics and short‐term surgical outcomes in the propensity score‐matched cohort
| ESSQS group (n = 426) | Non‐ESSQS group (n = 426) | P † | |
|---|---|---|---|
| Age (years) * | 67·4 (66·4–68·5) | 67·4 (66·4–58·5) | 0·989‡ |
| Sex ratio (M : F) | 247 : 179 | 250 : 176 | 0·835 |
| BMI (kg/m 2 ) * | 23·2 (22·9–23·6) | 23·0 (22·7–23·4) | 0·447‡ |
| Tumour location | 0·310 | ||
| Colon | 270 (63·4) | 256 (60·0) | |
| Rectum | 156 (36·6) | 170 (40·0) | |
| Clinical stage | 0·868 | ||
| 0 | 21 (4·9) | 21 (4·9) | |
| I | 185 (43·4) | 173 (40·6) | |
| II | 131 (30·8) | 138 (32·4) | |
| III | 89 (20·9) | 94 (22·1) | |
| Procedure | 0·945 | ||
| Right colectomy | 110 (25·8) | 111 (26·1) | |
| Transverse colectomy | 18 (4·2) | 14 (3·3) | |
| Left colectomy | 14 (3·3) | 9 (2·1) | |
| Sigmoidectomy | 42 (9·9) | 40 (9·4) | |
| High anterior resection | 142 (33·3) | 149 (35·0) | |
| Low anterior resection | 88 (20·7) | 91 (21·4) | |
| APR | 11 (2·6) | 10 (2·3) | |
| Other | 1 (0·2) | 2 (0·5) | |
| Anastomosis | n = 415 | n = 415 | 0·537 |
| FEEA | 125 (30·1) | 125 (30·1) | |
| Triangular anastomosis | 55 (13·3) | 47 (11·3) | |
| DST | 230 (55·4) | 241 (58·1) | |
| Other | 5 (1·2) | 2 (0·5) | |
| Lymph node dissection | 0·956 | ||
| D1 | 12 (2·8) | 12 (2·8) | |
| D2 | 133 (31·2) | 129 (30·3) | |
| D3 | 281 (66·0) | 285 (66·9) | |
| Diverting stoma | 17 (4·0) | 20 (4·7) | 0·614 |
| Outcomes | |||
| Duration of surgery (min)* | 226 (219–234) | 249 (241–256) | 0·001‡ |
| Blood loss (ml)* | 48·7 (35·6–61·8) | 57 9 (44·7–71·0) | 0·329‡ |
| Conversion | 9 (2·1) | 16 (3·8) | 0·153 |
| Intraoperative complication | 7 (1·6) | 18 (4·2) | 0·025 |
| Postoperative complication | 20 (4·7) | 42 (9·9) | 0·003 |
| Reoperation | 7 (1·6) | 21 (4·9) | 0·007 |
| No. of harvested lymph nodes* | 17·5 (16·4–18·6) | 18·9 (17·8–20·0) | 0·078‡ |
| Pathological R0 resection | 416 (97·7) | 420 (98·6) | 0·449 |
Values in parentheses are percentages unless indicated otherwise;
*
values are mean (95 per cent c.i.). ESSQS, Endoscopic Surgical Skill Qualification System; APR, abdominoperineal resection; FEEA, functional end‐to‐end anastomosis; DST, double‐stapling technique.
†
χ2 test, except
‡
Student's t test.