Variable | OR (95% CI) | P value |
---|---|---|
Mechanical ventilation (>3 days) | 3.28 (1.67–6.45) | 0.001 |
APACHE II score | 1.43 (1.17–1.76) | 0.001 |
Coexisting infection by both Gram-positive and Gram-negative bacteria | 4.06 (2.23–7.38) | <0.001 |
Urethral catheterization (>3 days) | 3.97 (1.45–10.89) | 0.007 |