Results of the Cox proportional hazard analysis of nosocomial infection
| Variables | HR | 95% CI | P values |
| LOS | 1.002 | 0.996 to 1.007 | 0.547 |
| TBSA | 1.189 | 1.005 to 1.407 | 0.043 |
| Full thickness burn | 1.799 | 1.289 to 2.511 | 0.000 |
| Inhalation injury | 3.326 | 2.169 to 5.102 | 0.000 |
| Diabetes | 1.586 | 0.856 to 2.939 | 0.143 |
Values of P<0.05 are given in bold.
LOS, length of stay; TBSA, total body surface area.