Table 1 Demographics, patient, and surgical characteristics of patients undergoing surgery for rectal cancer in Västmanland county between 1996 and 2017
From: Risk factors for small bowel obstruction after open rectal cancer resection
| Parameters |
Total cohort N = 752 |
With SBO N = 84 |
Without SBO N = 668 |
|---|---|---|---|
| Age (years)b | 69 (32–88) | 66 (42–87) | 70 (32–88) |
| Gender M: F | 469: 283(62:38) | 53:31(63:37) | 416:252(62:38) |
| Body mass index (kg/m2)c | 26 ± 4 | 25 ± 4 | 25 ± 4 |
| Missing | 5 | 0 | 5 |
| ASA score | |||
| I–II | 524 (70) | 61 (73) | 463 (69) |
| III–IV | 228 (30) | 23 (27) | 205 (31) |
| WHO PS | |||
| I | 435 (58) | 51 (61) | 384 (57) |
| II | 282 (37) | 30 (36) | 252 (38) |
| III | 28 (4) | 3 (3) | 25 (4) |
| IV | 6 (1) | 0 (0) | 6 (1) |
| TNM stage | |||
| I–II | 404 (54) | 42 (50) | 362 (54) |
| III | 256 (34) | 29 (35) | 227 (34) |
| IV | 91 (12) | 13 (15) | 78 (12) |
| Preoperative radiotherapya | 579 (77) | 73 (87) | 506 (76) |
| Missing | 1 | 0 | 1 |
| Type of surgery | |||
| Anterior resection | 468 (62) | 48 (57) | 420 (63) |
| Hartmann’s procedure | 84 (11) | 7 (8) | 77 (11) |
| Abdominoperineal excision | 184 (25) | 27 (32) | 157 (24) |
| Proctocolectomy | 16 (2) | 2 (3) | 14 (2) |
| Mobilization of splenic flexure | 454 (60) | 51 (61) | 403 (60) |
| Resection of other organs | 202 (27) | 25 (30) | 177 (27) |
| Intraoperative bleeding (mL)c | 689 ± 618 | 723 ± 604 | 685 ± 620 |
| Missing | 3 | 0 | 3 |
| Operative time (min)c | 293 ± 76 | 302 ± 70 | 292 ± 76 |
| Missing | 5 | 0 | 5 |
| Re-laparotomy | 28 (4) | 7 (8) | 21 (3) |
| Incisional hernia | 69 (9) | 10 (12) | 59 (9) |