Table 2 Multivariate analysis of factors associated with SSI in 2016, Addis Ababa, Ethiopia
Characteristic | Patients with SSI | Patients without SSI | AOR (95% CI) | P-value |
|---|---|---|---|---|
Educational Status | ||||
Illiterate | 20 (37%) | 34 (63%) | 1 | |
Grade 1-8th | 19 (19.8) | 77 (80.2%) | ||
Grade 9-12th | 17 (25%) | 51 (75%) | ||
College/university | 5 (16.1%) | 26 (83.9%) | 0.1 (0.03–0.913) | 0.041 |
Pre-operative hospital stay | ||||
< 2 h | 30 (19%) | 128 (81%) | 1 | |
2-4 h | 15 (30.6%) | 34 (69.4%) | ||
> 4 h | 16 (38.1%) | 26 (61.4%) | 6 (1.5–27.90) | 0.012 |
Post-operative hospital stay | ||||
< 7 days | 34 (55.7%) | 169 (89.9%) | 1 | |
7–14 days | 14 (23%) | 13 (6.9%) | 4.3 (1.11–16.10) | 0.035 |
> 14 days | 13 (21.3%) | 6 (3.2%) | 5 (2.04–101.12) | 0.007 |
ASA score | ||||
III | 4 (66.7%) | 2 (33.3%) | 1 | |
II | 6 (14.3%) | 36 (85.7%) | ||
I | 51 (25.4%) | 150 (74.6%) | 0.3 (0.07–1.26) | 0.026 |
Pre-morbid illness | ||||
Diabetes Mellitus | 5 (62.5%) | 3 (37.5%) | 1 | |
Hypertension | 3 (10.7%) | 25 (89.3%) | 0.03 (0.001–0.74) | 0.032 |
HIV | 0 | 4 (100%) | ||
No disease | 50 (25%) | 150 (75%) | 0.002 (0.00–0.13) | 0.003 |
Wound classification | ||||
Clean | 0 | 125 (100%) | 1 | |
Clean-contaminated | 48 (43.6%) | 62 (56.4%) | 5 (4.80–93.95) | < 0.001 |
Contaminated | 7 (50%) | 7 (50%) | 6 (5.39–35.94) | < 0.001 |