TABLE 1.
Baseline Characteristics
| Total (N = 83) | Negative EA and NBBL (N = 47) | Positive EA and NBBL (N = 21) | Positive EA, Negative NBBL (N = 14) | p | |
|---|---|---|---|---|---|
| Age (mean ± sd) | 58.53 ± 14.43 | 54.36 ± 13.83 | 63.62 ± 11.92 | 64.71 ± 16.01 | 0.0095 |
| Sex % female (n) | 49.4% (41) | 59.6% (28) | 42.6% (9) | 28.6% (4) | 0.0943 |
| Acute Physiology and Chronic Health Evaluation III (mean ± sd) | 93.66 ± 31.77 | 93 ± 28.6 | 99 ± 28.34 | 91.5 ± 43.7 | 0.7457 |
| Diabetes (n) | 30.1% (25) | 36.2% (17) | 23.8% (5) | 21.4% (3) | 0.4274 |
| Chronic obstructive pulmonary disease (n) | 27.7% (23) | 29.8% (14) | 14.3% (3) | 42.9% (6) | 0.1684 |
| Liver failure (n) | 16.9% (14) | 27.7% (13) | 4.8% (1) | 0% (0) | 0.012 |
| Immune suppression (n) | 15.7% (13) | 10.6% (5) | 28.6% (6) | 14.3% (2) | 0.1712 |
| Malignancy (n) | 9.6% (8) | 12.8% (6) | 9.5% (2) | 0% (0) | 0.3682 |
| Endotracheal tube days (mean ± sd) | 6.024 ± 7.128 | 4.340 ± 4.944 | 8.048 ± 8.599 | 9.071 ± 9.515 | 0.0509 |
| In-hospital mortality (n) | 25.3% (21) | 23.4% (11) | 28.6% (6) | 28.6% (4) | 0.8689 |
EA = endotracheal aspirate, NBBL = nonbronchoscopic bronchoalveolar lavage.
Patients were broken into three groups based on EA and NBBL culture results: negative EA and NBBL (no infection), positive EA and NBBL (true infection), and positive EA, negative NBBL (suspected contamination).