Table 5.
Univariate and multivariate analysis for factors associated with CR-GNB infection in ICU patients.
| Variable | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | p-value | OR | 95% CI | p-value | |
| History of recent hospitalization | 2.363 | 1.212–4.608 | 0.012 | - | - | - |
| Combination antibiotic treatment (X1) | 3.994 | 2.084–7.656 | <0.001 | 3.197 | 1.561–6.549 | 0.001 |
| Duration of mechanical ventilation before the occurrence of infective bacteria (days) |
1.050 | 1.018–1.083 | 0.002 | - | - | - |
| No. of types of antibiotics used | 1.544 | 1.222–1.950 | <0.001 | - | - | - |
| Hospital-acquired infection (X2) | 5.953 | 1.972–17.970 | 0.002 | 3.563 | 1.062–11.959 | 0.040 |
| History of glucocorticoid use | 2.546 | 1.189–5.451 | 0.016 | - | - | - |
| History of carbapenem use | 3.354 | 1.739–6.470 | <0.001 | - | - | - |
| History of central venous catheterization | 3.131 | 1.661–5.901 | <0.001 | - | - | - |
| Duration of mechanical ventilation (days) | 1.165 | 1.067– 1.272 | 0.001 | - | - | - |
| Duration of mechanical ventilation ≥7 days (X3) | 6.471 | 2.437–17.181 | <0.001 | 5.096 | 1.865–13.923 | 0.001 |
CR-GNB, carbapenem-resistant gram-negative bacteria; OR, odds ratio; CI, confidence interval; -: variables that were excluded through the stepwise forward regression method.