Table 1 Adjusted odds ratios (ORs) with 95% confidence intervals (CIs) for nosocomial infection
Individual factors | OR (95% CI) | |
|---|---|---|
Sex | Men | 1.00 (Reference) |
Women | 0.74 (0.62–0.88) | |
Age (years) | 16–44 | 1.00 (Reference) |
45–54 | 0.83 (0.60–1.15) | |
55–64 | 0.83 (0.62–1.12) | |
65–74 | 0.89 (0.68–1.18) | |
75+ | 0.75 (0.56–1.00) | |
APACHE II | 0–5 | 1.00 (Reference) |
6–10 | 1.57 (1.03–2.40) | |
11–15 | 2.55 (1.70–3.85) | |
16–20 | 3.62 (2.39–5.49) | |
21–25 | 5.38 (3.50–8.27) | |
26–30 | 5.14 (3.23–8.16) | |
31+ | 7.09 (4.34–11.59) | |
Operation | None | 1.00 (Reference) |
Elective | 0.78 (0.63–0.98) | |
Urgent | 1.22 (1.00–1.49) | |
Ventilator | Nonuser | 1.00 (Reference) |
User | 2.11 (1.62–2.76) | |
Central venous catheter | Nonuser | 1.00 (Reference) |
User | 1.48 (1.14–1.93) | |