Table 2.
Baseline characteristics of patients in the anastomotic leakage and non-anastomotic leakage groups before and after propensity score matching.
| Before Propensity Score Matching | After Propensity Score Matching | ||||||
|---|---|---|---|---|---|---|---|
| AL (n = 23) | Non-AL (n = 465) | p Value | AL (n = 23) | Non-AL (n = 46) | p Value | ||
| Age, years; mean ± SD | 72 ± 10 | 69 ± 11 | 0.227 | 72 ± 10 | 73 ± 8 | 0.584 | |
| Gender; n (%) | Male | 9 (39.1%) | 197 (42.4%) | 0.759 | 9 (39.1%) | 20 (43.5%) | 0.730 |
| Female | 14 (60.9%) | 268 (57.6%) | 14 (60.9%) | 26 (56.5%) | |||
| ASA score; n (%) | I-II | 8 (34.8%) | 200 (43.0%) | 0.436 | 8 (34.8%) | 13 (28.3%) | 0.579 |
| III-IV | 15 (65.2%) | 265 (57.0%) | 15 (65.2%) | 33 (71.7%) | |||
| Chronic kidney failure; n (%) | 1 (4.3%) | 9 (1.9%) | 0.425 | 1 (4.3%) | 0 (0%) | 0.333 | |
| Diabetes; n (%) | 2 (8.7%) | 63 (13.5%) | 0.504 | 2 (8.7%) | 8 (17.4%) | 0.477 | |
| Coronary heart; n (%) | 8 (34.8%) | 122 (26.2%) | 0.365 | 8 (34.8%) | 14 (30.4%) | 0.715 | |
| History of stroke; n (%) | 3 (13.0%) | 12 (2.6%) | 0.005 | 3 (13.0%) | 6 (13.0%) | 0.999 | |
| Tumor localization; n (%) | Caecum; n (%) | 7 (30.4%) | 127 (27.3%) | 0.445 | 7 (30.4%) | 14 (30.4%) | 0.974 |
| Ascending colon; n (%) | 11 (47.8%) | 248 (53.3%) | 11 (47.8%) | 24 (52.2%) | |||
| Hepatic flexure; n (%) | 2 (8.7%) | 64 (13.8%) | 2 (8.7%) | 3 (6.5%) | |||
| Transverse colon; n (%) | 3 (13.1%) | 26 (5.6%) | 3 (13.1%) | 5 (10.9%) | |||
| Surgical radicality | Radical; n (%) | 20 (87.0%) | 433 (93.1%) | 0.264 | 20 (87.0%) | 38 (82.6%) | 0.740 |
| Palliative; n (%) | 3 (13.0%) | 32 (6.9%) | 3 (13.0%) | 8 (17.4%) | |||
| pT | T1/2; n (%) | 3 (13.0%) | 66 (14.2%) | 0.877 | 3 (13.0%) | 8 (17.4%) | 0.740 |
| T3/4; n (%) | 20 (87.0%) | 399 (85.8%) | 20 (87.0%) | 38 (82.6%) | |||
| pN | N0; n (%) | 14 (60.9%) | 235 (50.5%) | 0.333 | 14 (60.9%) | 24 (52.2%) | 0.494 |
| N+; n (%) | 9 (39.1%) | 230 (49.5%) | 9 (39.1%) | 22 (47.8%) | |||
| pM | 0; n (%) | 18 (78.3%) | 397 (85.4%) | 0.350 | 18 (78.3%) | 36 (78.3%) | 0.999 |
| 1; n (%) | 5 (21.7%) | 68 (14.6%) | 5 (21.7%) | 10 (21.7%) | |||
| Surgical approach | Open; n (%) | 20 (87.0%) | 382 (82.2%) | 0.555 | 20 (87.0%) | 37 (80.4%) | 0.500 |
| MIS; n (%) | 3 (13.0%) | 83 (17.8%) | 3 (13.0%) | 9 (19.6%) | |||
| Type of anastomosis | End-to-end; n (%) | 2 (8.7%) | 41 (8.8%) | 0.961 | 2 (8.7%) | 3 (6.5%) | 0.945 |
| End-to-side; n (%) | 9 (39.1%) | 195 (41.9%) | 9 (39.1%) | 18 (39.1%) | |||
| Side-to-side; n (%) | 12 (52.2%) | 229 (49.3%) | 12 (52.2%) | 25 (54.3%) | |||
| Anastomotic technique | Hand sewn; n (%) | 22 (95.7%) | 462 (99.4%) | 0.055 | 22 (95.7%) | 46 (100%) | 0.154 |
| Stapled; n (%) | 1 (4.3%) | 3 (0.6%) | 1 (4.3%) | 0 (0%) | |||
| Intrahospital mortality; n (%) | 2 (8.7%) | 6 (1.3%) | 0.006 | 2 (8.7%) | 1 (2.2%) | 0.210 | |
| Postoperative hospitalization length, days; mean ± SD | 25 ± 11 | 12 ± 7 | 0.001 | 25 ± 11 | 12 ± 4 | 0.001 | |
| 3 months readmission rate; n (%) | 5 (21.7%) | 27 (5.8%) | 0.003 | 5 (21.7%) | 4 (8.7%) | 0.129 | |