Tab. II.
Surgical characteristics of patients.
| Variable | Pre-intervention Group | Post-intervention Group |
P value (Pts AM) |
||||
|---|---|---|---|---|---|---|---|
| No. Pts (n = 461) |
No. Pts AM (n = 152) |
Pts AM% | No. Pts (n = 532) |
No. Pts AM (n = 130) |
Pts AM% | ||
| Surgical procedures: | |||||||
| Elective surgery Urgent or emergency surgery |
370 91 |
108 44 |
29.2 48.4 |
403 129 |
99 31 |
24.6 24.0 |
0.15 < 0.001 |
| Operative procedure: | |||||||
| Breast surgery Herniorrhaphy Gallbladder surgery Colon surgery Laminectomy Hip prosthesis Thoracic surgery Craniotomy Kidney surgery Spinal fusion Other |
51 62 52 52 54 31 23 22 22 14 78 |
48 9 23 11 0 5 5 0 14 1 36 |
94.1 14.5 44.2 21.2 0 16.1 21.7 0 63.6 7.1 46.2 |
101 75 74 73 41 22 25 21 11 14 75 |
48 13 8 8 2 3 10 3 2 3 30 |
47.5 17.3 10.8 11.0 4.9 13.6 40.0 14.3 18.2 21.4 40.0 |
< 0.001 0.66 < 0.001 0.12 0.18 1.0 0.18 0.11 0.03 0.60 0.44 |
| Prosthetic material implant: | |||||||
| Yes No |
120 341 |
48 104 |
40.0 30.5 |
133 399 |
48 82 |
36.1 20.6 |
0.52 0.002 |
| Duration of operative procedure, mean minutes (SD) | 244 (193) |
249 (206) |
- | 235 (141) |
255 (179) |
- | 0.79 |
| Surgical Wound Classification: | |||||||
| Clean Clean-Contaminated Contaminated Dirty-Infected Missing record |
243 87 18 16 97 |
81 29 6 7 29 |
33.3 33.3 33.3 43.8 29.9 |
306 118 24 19 65 |
82 23 8 4 13 |
26.8 19.5 33.3 21.1 20.0 |
0.10 0.02 1.0 0.27 0.16 |
Pts = patients; Pts AM = patients with at least one antimicrobial prescription at discharge; SD = standard deviation.