| Operations n (%) | Infections n (rate per 100 procedures) |
Duration of operation | ||
Under the 75th percentile | 48,438 (80%) | 1108 (2.3%) |
Over the 75th percentile | 12,022 (20%) | 520 (4.3%) |
ASA score | ||
1 | 18,085 (30%) | 285 (1.6%) |
2 | 26,019 (43%) | 712 (2.7%) |
3 | 9410 (16%) | 422 (4.5%) |
4 | 1804 (3%) | 116 (6.4%) |
5 | 152 (0%) | 9 (5.9%) |
Unknown | 4990 (8%) | 84 (1.7%) |
Wound class | ||
I―clean | 29,055 (49%) | 478 (1.6%) |
II―clean/contaminated | 23,844 (40%) | 673 (2.8%) |
III―contaminated | 4947 (8%) | 318 (6.4%) |
IV―dirty | 1488 (3%) | 152 (10.2%) |
Technique of operation | ||
Classic | 46,911 (79%) | 1414 (3%) |
Videoscopic | 12,125 (21%) | 211 (1.7%) |
Hospital stay before operation | ||
<2 day | 28,499 (47%) | 485 (1.7%) |
³2 day | 31,917 (53%) | 1141 (3.6%) |
Sex | ||
Male | 20,298 (34%) | 668 (1.7%) |
Female | 40,162 (66%) | 960 (2.4%) |
Age | ||
0 - 1 | 399 (1%) | 7 (1.8%) |
2 - 5 | 470 (1%) | 6 (1.3%) |
6 - 15 | 955 (2%) | 23 (2.4%) |
16 - 45 | 21,778 (36%) | 376 (1.7%) |
46 - 65 | 16,262 (27%) | 461 (2.8%) |
66 - 85 | 18,533 (31%) | 690 (3.7%) |
³85 | 1955 (3%) | 65 (3.3%) |
Urgent operation | ||
No | 45,044 (75%) | 1174 (2.6%) |
Yes | 15,006 (25%) | 452 (3%) |
Operative procedure category | ||
Caesarean section | 12,970 (21%) | 222 (1.7%) |
Cholecystectomy | 9653 (16%) | 162 (1.7%) |
Breast surgery | 8724 (14%) | 156 (1.8%) |
Colon surgery | 6130 (10%) | 508 (8.3%) |
Herniorrhaphy | 4172 (7%) | 50 (1.2%) |
Open reduction of fracture | 2365 (4%) | 14 (0.6%) |
Appendectomy | 1957 (3%) | 51 (2.6%) |
Prostatectomy | 1558 (3%) | 49 (3.1%) |
Rectal surgery | 1412 (2%) | 126 (8.9%) |
Laminectomy | 1407 (2%) | 5 (0.4%) |
Thoracic surgery | 1010 (2%) | 11 (1.1%) |