Characteristics | Category | Event | Censored | CHR (95% CI) | AHR (95% CI) |
---|---|---|---|---|---|
Sex | Male | 44 | 195 | 0.9 [0.6, 1.5] | 1.1 [0.70, 1.99] |
Female | 32 | 115 | 1 | 1 | |
Duration of symptoms | > 3days | 62 | 192 | 2.9 [1.3, 4.3]* | 2.2 [1.15, 4.02]* |
≤ 3days | 14 | 118 | 1 | 1 | |
Presence of comorbidity | Yes | 30 | 74 | 1.14 [0.72, 1.82] | 0.8 [0.49, 1.38] |
No | 46 | 236 | 1 | Â | |
Abdominal tenderness | No tenderness | 20 | 183 | 1 | Â |
Diffuse tenderness | 56 | 127 | 1.5 [0.89, 2.55] | 0.72 [0.20–4.03] | |
Fever | Yes | 26 | 69 | 1.4 [0.89, 2.32]** | 1.5 [0.89, 2.53] |
No | 50 | 241 | 1 | 1 | |
abnormal leukocyte count | Yes | 35 | 169 | 0.7 [0.46, 1.14]** | 0.9 [0.49, 1.50] |
Normal | 41 | 141 | 1 | 1 | |
Diagnosis | Large bowel obstruction | 64 | 288 | 1.0 [0.6–1.7] | 1.0 [0.55, 1.81] |
viscus perforation | 12 | 22 | 1.6 [0.9, 3.2] | 1.2 [0.58, 2.92] | |
Preoperative antibiotic use | Yes | 18 | 145 | 1.4 [0.8, 2.4] | 1 |
No | 58 | 165 | Â | 0.9 [0.66, 2.10] | |
Preoperative vasopressor use | Yes | 41 | 41 | 2.2 [1.4, 3.5] * | 1.8 [1.11, 2.98] * |
No | 35 | 269 | 1 | 1 | |
Preoperative hypotension | Yes | 9 | 15 | 1.8 [0.9, 3.6] | 1.1 [0.54, 2.51] |
No | 67 | 295 | 1 | 1 | |
Preoperative sepsis | Yes | 29 | 37 | 1.8 [1.1, 2.9]* | 1.8 [1.05, 3.17]* |
No | 47 | 273 | Â | 1 | |
Degree of peritoneal contamination | Generalized | 14 | 122 | 3.5 [1.24, 9.6]* | 3.0 [0.96, 9.50] |
Localized or none | 62 | 188 | 1 | Â | |
Pus or faecal matter in peritoneal cavity | Yes | 51 | 157 | 1.9 [1.2,3.0]* | 1.7 [0.91, 2.93] |
No | 25 | 153 | 1 | 1 | |
Duration of procedures | ≥ 1 h | 61 | 119 | 1.96 [1.1, 3.5]* | 1.7 [0.82, 3.40] |
< 1 h | 15 | 191 | 1 | 1 | |
Bowel ischemia | Yes | 57 | 129 | 1.4 [0.81, 2.40]** | 1.1 [0.54, 2.23] |
No | 19 | 181 | 1 | 1 | |
Site of Postop care | ICU | 20 | 25 | 1.96 [1.2, 3.3] * | 2.0 [1.23, 3.49]* |
PACU | 56 | 285 | 1 | 1 |