Table 1. Characteristics of patients and surgery according to periods.
| Characteristics | P1 (n=36) | P2 (n=54) | χ2 | Total (n=90) | |
|---|---|---|---|---|---|
| No. (%) | No. (%) | p-value | No. (%) | ||
| Sequence | 0.021 | ||||
| Primary CS | 14 (38.9) | 19 (35.2) | 33 (36.7) | ||
| Interval CS | 10 (27.8) | 15 (27.8) | 25 (27.8) | ||
| Final CS | 11 (30.6) | 7 (13.0) | 18 (20.0) | ||
| Recurrence | 1 (2.8) | 13 (24.1) | 14 (15.6) | ||
| Histology | 0.221 | ||||
| High-grade serous | 30 (83.3) | 38 (70.4) | 68 (75.6) | ||
| Low-grade serous | 2 (5.6) | 2 (3.7) | 4 (4.4) | ||
| Others | 4 (11.1) | 14 (25.9) | 18 (20.0) | ||
| ASA status | 0.792 | ||||
| 1 | 4 (11.1) | 7 (13.0) | 11 (12.2) | ||
| 2 | 27 (75.0) | 37 (68.5) | 64 (71.1) | ||
| 3 | 5 (13.9) | 10 (18.5) | 15 (16.7) | ||
| R0/≥R1 | 0.310 | ||||
| R0 | 31 (86.1) | 43 (79.6) | 74 (82.2) | ||
| ≥R1 | 5 (13.9) | 11 (20.4) | 16 (17.8) | ||
| Rectal anastomosis | 0.211 | ||||
| No | 0 (0.0) | 3 (5.6) | 3 (3.3) | ||
| Yes | 36 (100.0) | 51 (94.4) | 87 (96.7) | ||
| Stoma | 0.020 | ||||
| No | 20 (55.6) | 17 (31.5) | 37 (41.1) | ||
| Yes | 16 (44.4) | 37 (68.5) | 53 (58.9) | ||
| Type of stoma | 0.045 | ||||
| Colostomy | 5 (31.2) | 3 (8.1) | 8 (15.1) | ||
| Ileostomy | 11 (68.8) | 34 (91.9) | 45 (94.9) | ||
| Surgeon | <0.001 | ||||
| 1 | 12 (33.3) | 10 (18.5) | 22 (24.4) | ||
| 2 | 9 (25.0) | 18 (33.3) | 27 (30.0) | ||
| 3 | 1 (2.8) | 14 (25.9) | 15 (16.7) | ||
| 4 | 1 (2.8) | 8 (14.8) | 9 (10.0) | ||
| 5 | 6 (16.7) | 4 (7.4) | 10 (11.1) | ||
| 6 | 7 (19.4) | 0 (0.0) | 7 (7.8) | ||
| Complication | 0.447 | ||||
| No | 26 (72.2) | 37 (68.5) | 63 (70.0) | ||
| Yes | 10 (27.8) | 17 (31.5) | 27 (30.0) | ||
| Grade complication | 0.180 | ||||
| 1 | 4 (40.0) | 6 (35.3) | 10 (37.0) | ||
| 2 | 1 (10.0) | 7 (41.2) | 8 (29.6) | ||
| 3 | 5 (50.0) | 4 (23.5) | 9 (33.3) | ||
| Reoperation | 0.257 | ||||
| No | 31 (86.1) | 50 (92.6) | 81 (90.0) | ||
| Yes | 5 (13.9) | 4 (7.4) | 9 (10.0) | ||
| Stoma closure | 0.522 | ||||
| No | 5 (31.2) | 13 (35.1) | 18 (34.0) | ||
| Yes | 11 (68.8) | 24 (64.9) | 35 (66.0) | ||
| HIPEC | 0.041 | ||||
| No | 36 (100.0) | 48 (88.9) | 84 (93.3) | ||
| Yes | 0 (0.0) | 6 (11.1) | 6 (6.7) | ||
| BMI | 0.085 | ||||
| <30 | 29 (80.6) | 50 (92.6) | 79 (87.8) | ||
| ≥30 | 7 (19.4) | 4 (7.4) | 11 (12.2) | ||
| Age (yr) | 0.747 | ||||
| ≤50 | 6 (16.7) | 6 (11.1) | 12 (13.3) | ||
| 51–74 | 24 (66.7) | 38 (70.4) | 62 (68.9) | ||
| ≥75 | 6 (16.7) | 10 (18.5) | 16 (17.8) | ||
| Duration surgery (min) | 0.382 | ||||
| ≤350 | 20 (55.6) | 27 (50.0) | 47 (52.2) | ||
| >350 | 16 (44.4) | 27 (50.0) | 43 (47.8) | ||
ASA, American Society of Anesthesiologists; BMI, body mass index; CS, caesarean section; HIPEC, hyperthermic intraperitoneal chemotherapy.