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Characteristics of the study population |
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| Characteristic |
Total population |
Patients with VAP |
Patients without VAP |
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|
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| Number of patients |
936 |
209 |
727 |
| Age (years) |
65 (50 to 75) |
64 (54 to 74) |
65 (48 to 75) |
| Male sex |
552 (59.0) |
125 (59.8) |
427 (58.7) |
| Charlson score at admissiona |
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| 0 |
335 (35.8) |
69 (33.0) |
266 (36.6) |
| 1 to 2 |
326 (34.8) |
91 (43.5) |
235 (32.3) |
| 3 to 5 |
184 (19.7) |
34 (16.3) |
150 (20.6) |
| > 5 |
91 (9.7) |
15 (7.2) |
76 (10.5) |
| APACHE II score at admissionb |
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| < 26 |
367 (40.3) |
74 (37.2) |
293 (41.2) |
| 26 to 30 |
170 (18.7) |
37 (18.6) |
133 (18.7) |
| > 30 |
373 (41.0) |
88 (44.2) |
285 (40.1) |
| Nursing acuity score at admission |
226 (199 to 226) |
226 (200 to 226) |
226 (196 to 226) |
| Admission diagnosis |
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| Infectious diseasea |
238 (25.4) |
70 (33.5) |
168 (23.1) |
| Cardiovascular condition |
315 (33.7) |
76 (36.4) |
239 (32.9) |
| Pulmonary disease |
139 (14.9) |
27 (12.9) |
112 (15.4) |
| Othera |
244 (26.1) |
36 (17.2) |
208 (28.6) |
| ICU stay (days)a |
6 (3 to 11) |
15 (10 to 23) |
5 (3 to 8) |
| Duration of mechanical ventilation (days)a |
3 (2 to 8) |
11 (6 to 19) |
3 (2 to 6) |
| ICU mortality |
297 (31.7) |
70 (33.5) |
227 (31.2) |
| Hospital stay (days)a |
18 (7 to 38) |
29 (17 to 67) |
14 (5 to 32) |
| Hospital mortality |
381 (40.7) |
94 (45.0) |
287 (39.5) |
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Values are expressed as numbers (%) or median (interquartile range) for continuous variables. aSignificant difference between patients with and without VAP (P < 0.05). bTwenty-six missing values. APACHE, Acute Physiology and Chronic Health Evaluation; ICU, intensive care unit; VAP, ventilator-associated pneumonia. | |||
Hugonnet et al. Critical Care 2007 11:R80 doi:10.1186/cc5974 |
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