Positive sample result | Negative sample result* | Overall antibiotic use associated with diagnostic technique | |
Qualitative ETA diagnosis | 11.5 (8.9 to 14) | 1.5 (0 to 5) | 9.9 (7.4 to 12.3) |
BAL diagnosis | 12.1 (8.8 to 15) | 5.8 (3.7 to 7.9) | 7.9 (6 to 9.8) |
Data shown as mean and 95% CI.
*Sterile for ETA, <104 colony-forming units (CFU)/ml for BAL.
BAL, bronchoalveolar lavage; ETA, endotracheal aspirate.