Table 1 Baseline key characteristics of the patients included in the intervention and control arms
Factor | Routine practice, n = 5640 | Change of gloves and instruments, n = 5046 |
|---|---|---|
Age | ||
< 18 years | 484 (8.6) | 522 (10.3) |
≥ 18 years | 5155 (91.4) | 4524 (89.7) |
ASA grade | ||
Grade I | 2539 (45.0) | 2600 (51.5) |
Grade II | 2086 (37.0) | 1571 (31.1) |
Grade III | 757 (13.4) | 735 (14.6) |
Grade IV | 158 (2.8) | 121 (2.4) |
Grade V | 99 (1.8) | 19 (0.4) |
Timing of surgery | ||
Elective | 2486 (44.1) | 2603 (51.6) |
Emergency | 3153 (55.9) | 2443 (48.4) |
Indication | ||
Malignant disease | 860 (15.2) | 955 (18.9) |
Benign disease | 4506 (79.9) | 3812 (75.5) |
Trauma | 274 (4.9) | 279 (5.5) |
WHO surgical safety checklist | ||
Yes | 5387 (95.5) | 4882 (96.8) |
No | 252 (4.5) | 163 (3.2) |
Operative approach | ||
Open—midline | 3344 (59.3) | 3325 (65.9) |
Open—non-midline | 2172 (38.5) | 1605 (31.8) |
Laparoscopic | 38 (0.7) | 56 (1.1) |
Laparoscopic converted to open | 86 (1.5) | 60 (1.2) |