Table 3. Univariate and multivariate analysis of risk factors for mortality from ventilator-associated tracheobronchitis.
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
|
|
|
|||
| OR | 95%CI | OR | 95%CI | |
| Mean age (range), years | 1.05 | 1.01-1.10 | - | - |
| Male sex | 0.76 | 0.20-2.81 | - | - |
| Cardiovascular disease | 1.41 | 0.39-5.33 | - | - |
| Pulmonary disease | 4.37 | 0.80-33.99 | - | - |
| Intestinal disease | 1.43 | 0.23-8.74 | - | - |
| Cancer disease | 0.17 | 0.01-1.19 | - | - |
| Surgical patient | 1.66 | 0.46-6.15 | - | - |
| APACHE I mean (range) | 1.14 | 1.03-1.29 | 1.18 | 1.05-1.38 |
| Duration of mechanical ventilation, mean (range), days | 1.09 | 1.02-1.17 | 1.09 | 1.03-1.17 |
| Duration of BiPAP, mean (range), days | 1.08 | 0.96-1.25 | - | - |
| Duration of tracheostomy, mean (range), days | 1.05 | 1.01-1.10 | - | - |
| Length of stay at intensive care unit, mean (range), days | 1.04 | 1.01-1.08 | - | - |
| Length of hospital stay, mean (range), days | 0.99 | 0.97-1.00 | - | - |
Statistical test: conditional logistic regression model.
OR: odds ratio; 95%CI: 95% confidence interval; APACHE I: Acute Physiology and Chronic Health Evaluation; BiPAP: bilevel positive pressure airway.