Table 6. Univariate hazard ratios for risk factors of hospital-acquired infections, according to Cox regression analysis.
| Variables | Pneumonia (N = 44) | Urinary tract infection (N = 38) | Bloodstream infection (N = 15) | |||
|---|---|---|---|---|---|---|
| HR (95% CI) | p | HR (95% CI) | p | HR (95% CI) | p | |
| Admission for tetanus disease | 0.31 (0.16–0.62) | 0.001 | 1.38 (0.52–5.13) | 0.55 | 0.34 (0.12–1.08) | 0.07 |
| Charlson Comorbidity Index score | 1.28 (0.92–1.62) | 0.13 | 0.87 (0.37–1.41) | 0.66 | 1.31 (0.86–1.74) | 0.17 |
| Prior colonization status | ||||||
| Prior nasal colonization | 0.51 (0.22–1.33) | 0.16 | - | - | - | - |
| Prior rectal colonization | - | - | 0.49 (0.06–63.59) | 0.66 | 0.52 (0.06–68.40) | 0.69 |
| Prior endotracheal colonization | 0.77 (0.40–1.55) | 0.45 | - | - | - | - |
| Intensive care procedures on admission | ||||||
| Urinary catheter | - | - | 0.83 (0.41–1.64) | 0.60 | - | - |
| Respiratory support | 1.30 (0.71–2.38) | 0.39 | - | - | - | - |
| Vascular catheters | - | - | - | - | 5.06 (1.45–15.22) | 0.01 |