Table 5 Factors associated with major complications and mortality
Outcome variables | Major complications | Mortality | ||||||
|---|---|---|---|---|---|---|---|---|
Crude RR (95%CI) | p- value | Adjusted RR (95% CI) | p-value | Crude RR (95% CI) | p-value | Adjusted RR (95% CI) | p-value | |
SAS | 0.5 (0.4–0.7) | < 0.001 | 0.5 (0.4–0.7) | < 0.001 | 0.6 (0.4–0.8) | 0.001 | 0.6 (0.4–0.8) | 0.001 |
SAS category | ||||||||
Low score (n = 21) | 1.0 | 1.0 | NA | N/A | ||||
Medium score (n = 98) | 5.1 (0.6–40.4) | 0.122 | 3.5 (0.4–29.3) | 0.243 | 1.0 | 1.0 | ||
High score (n = 32) | 16.8 (2.0–140.7) | 0.009 | 18.4 (1.9–177.0) | 0.012 | 3.8 (1.3–11.1) | 0.015 | 3.9 (1.01–15.3) | 0.048 |
Age (years) | ||||||||
65 or more | 1.0 | 1.0 | 1.0 | 1.0 | ||||
18–64 | 1.9 (0.4–8.8) | 0.430 | 2.4 (0.3–21.3) | 0.436 | 1.7(0.3–8.6) | 0.532 | 2.9 (0.3–29.2) | 0.364 |
Sex | ||||||||
Female | 1.0 | 1.0 | ||||||
Male | 1.6 (0.7–3.8) | 0.264 | 0.7 (0.2–2.1) | 0.520 | ||||
Nature of operation | ||||||||
Elective | 1.0 | 1.0 | 1.0 | 1.0 | ||||
Emergency | 9.8 (2.2–43.0) | 0.002 | 19.5(1.1- 350.5) | 0.044 | 6.3 (0.8 – 49.6) | 0.081 | 2.1 (0.03–147.3) | 0.736 |
Cadre of surgeon | ||||||||
Specialist | 1.0 | 1.0 | 1.0 | 1.0 | ||||
Residents | 6.4 (1.8–22.0) | 0.003 | 1.2 (0.1–14.2) | 0.872 | 6.6 (0.8 – 51.6) | 0.074 | 7.1 (0.1–524.2) | 0.370 |
Duration of surgery | ||||||||
≤ 120 min | 1.0 | 1.0 | ||||||
> 120 min | 1.1 (0.5–2.4) | 0.730 | 1.3 (0.4 – 3.9) | 0.606 | ||||
Intraoperative diagnosis | ||||||||
Intestinal obstruction | 1.0 | N/A | ||||||
GI perforation | 7.9 (2.8–22.3) | < 0.001 | ||||||
Inflammatory disorder | 1.6 (0.3–7.4) | 0.555 | ||||||
Others | 0.2 (0.02–1.7) | 0.140 | ||||||
Need ICUa | ||||||||
No | 1.0 | 1.0 | 1.0 | 1.0 | ||||
Yes | 10.2 (3.0–35.0) | < 0.001 | 16.3 (2.8–94.6) | 0.002 | 18.2 (5.2 – 65.3) | < 0.001 | 23.9 (4.9–115.9) | < 0.001 |