Table 3 Comparison of postoperative characteristics of patients with and without surgical site infections
All (n = 188) | Surgical site infection | χ2 | P value | |||
|---|---|---|---|---|---|---|
No (n = 141) | Yes (n = 47) | |||||
DSC | once | 145 | 135 (93.1%) | 10 (6.9%) | 110.810 | 0.000 |
More than once | 43 | 6 (14.0%) | 37 (86.0%) | |||
Duration of DSC | ≤24 h | 89 | 86 (96.6%) | 3 (3.4%) | 93.763 | 0.000 |
24 h < DSC ≤48 h | 34 | 31 (91.2%) | 3 (8.8%) | |||
48 h < DSC ≤72 h | 25 | 16 (64.0%) | 9 (36.0%) | |||
72 h < DSC ≤96 h | 20 | 5 (25%) | 15 (75%) | |||
96 h < DSC ≤120 h | 11 | 2 (18.2%) | 9 (81.8%) | |||
>120 h | 9 | 1 (11.1%) | 8 (88.9%) | |||
ECMO | no | 153 | 137 (89.5%) | 16 (10.5) | 92.695 | 0.000 |
yes | 35 | 4 (11.4%) | 31 (88.6%) | |||
Duration of mechanical ventilation (h) | ≤72 h | 82 | 77 (93.9%) | 5 (6.1%) | 60.437 | 0.000 |
72 h < time ≤ 120 h | 62 | 50 (80.6%) | 12 (19.4%) | |||
>120 h | 44 | 14 (31.8) | 30 (68.2%) | |||