| VAP | P Value | |||
| + | − | |||
| Sex | Women | 46.60% | 53.40% | 0.1 |
| Men | 43.90% | 56.10% | ||
| tube type | Conventional endotracheal tube | 50% | 50% | 0.545 |
| EVAC | 40% | 65% | ||
| Bactiguard | 45% | 55% | ||
| Length of stayin ICU | Less than 8 days | 32.10% | 67.70% | 0.001 |
| More than or equal to 8 days | 67.90% | 32.30% | ||
| Discharged alive from ICU | 45.80% | 54.20% | 0.751 | |