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Oral cleanliness and incidence of ventilator-associated pneumonia in the two groups ().
| Group | Oral cleanliness | The incidence of ventilator-associated pneumonia | ||||
|---|---|---|---|---|---|---|
| I° | II° | III° | Early onset | Late onset | Total incidence | |
| Control group (50) | 15 (30.00) | 13 (26.00) | 22 (44.00) | 3 (6.00) | 9 (18.00) | 12 (14.00) |
| Observation group (50) | 5 (10.00) | 14 (28.00) | 31 (62.00) | 2 (4.00) | 3 (6.00) | 4 (8.00) |
| χ 2 | 8.294 | / | / | 4.762 | ||
| P | 0.016 | / | / | 0.029 | ||
