Table 2.
Subjects admitted with community-acquired pneumonia (CAP) identified by ICD-9 codes. CAP ICD-9 codes are those consistent with bacterial or viral pneumonia. Confirmed-CAP present on admission are those that fulfill the three established criteria (A-clinical, B-radiologic, and C-antimicrobial for CAP) by chart review
| Total 549 N (%) |
PWH 433 N (%) |
Uninfected 116 N (%) |
P | |
|---|---|---|---|---|
| Confirmed-CAP (A, B and C present) | 397 (72) | 321 (74) | 76 (66) | 0.2 |
| A. Clinical criteria present | 508 (93) | 401 (93) | 107 (92) | 0.7 |
| B. Radiologic criteria present | 407 (74) | 329 (76) | 78 (67) | 0.1 |
| C. Antimicrobials for CAP | 489 (89) | 387 (89) | 102 (87) | 0.6 |
| CAP Not confirmed (A, B or C missing) | 107 (20) | 77 (18) | 30 (26) | 0.4 |
| A. Clinical criteria present | 79 (73) | 56 (72) | 23 (77) | 0.6 |
| B. Radiologic criteria present | 8 (7) | 6 (8) | 2 (7) | 0.9 |
| C. Antimicrobials for CAP | 67 (62) | 48 (62) | 19 (63) | 0.9 |
| Hospital-acquired Pneumonia (HAP) | 14 (3) | 9 (2) | 5 (4) | 0.8 |
| Unable to adjudicate | 31 (6) | 26 (6) | 5 (4) | 0.2 |
A-Clinical, symptoms, signs and/or laboratory finding compatible with CAP
B-Radiologic, chest radiograph and/or CT chest compatible with CAP
C-Antimicrobials for CAP, antimicrobials administered within 48 h of admission