TABLE I.
Association between age, hospital size, and asthma diagnosis on outcomes
| Variable | LOS (h) | PIM2 POD | PRISM III POD | Intubation | Pupillary reflex | Low SBP* | Death |
|---|---|---|---|---|---|---|---|
| All patients | 19.2 (13.7, 33.4)† | 0.94 (0.8, 1.6) | 0.3 (0.3–0.8) | 373 (19%) | 12 (0.6%) | 93 (5%) | 19 (1%) |
| Age (y) | P < 0.001‡ | P = 0.23 | P < 0.001‡ | P = 0.04‡ | P = 0.14 | P = 0.11 | P = 0.11 |
| <2 | 19.4 (13.9, 35.5) | 0.98 (0.8, 2.0) | 0.3 (0.3, 0.8) | 54 (21%) | 1 (0.4%) | 8 (3%) | 1 (0.4%) |
| 2–5 | 17.5 (13.2, 24.2) | 0.94 (0.82,1.2) | 0.3 (0.3–0.63) | 65 (14%) | 0 | 15 (3%) | 1 (0.2%) |
| 6–12 | 19.2 (13.7, 33.8) | 0.91 (0.79, 1.4) | 0.3 (0.3–0.63) | 119 (19%) | 5 (0.8%) | 40 (6%) | 7 (1.1%) |
| 13–18 | 20.4 (13.9, 36.5) | 0.94 (0.8, 3.0) | 0.49 (0.3, 1.0) | 135 (21%) | 6 (1%) | 30 (5%) | 10 (1.6%) |
| Hospital size (no. of pediatric beds) | P = 0.001‡ | P < 0.001‡ | P < 0.001‡ | P < 0.001‡ | P = 0.80 | P = 0.02‡ | P = 0.58 |
| <81 | 18 (12.5, 31.7) | 0.9 (0.78, 1.1) | 0.3 (0.3, 0.6) | 31 (12%) | 1 (0.4%) | 5 (2%) | 1 (0.4%) |
| 81–160 | 18.2 (12.7, 26.6) | 0.9 (0.79, 1.1) | 0.3 (0.3, 0.63) | 54 (14%) | 1 (0.3%) | 16 (4%) | 2 (0.5%) |
| 161–240 | 17.8 (12.0, 28.8) | 0.91 (0.79, 1.3) | 0.3 (0.3, 0.8) | 63 (20%) | 3 (1%) | 10 (3%) | 5 (1.6%) |
| 241–320 | 20.9 (14.4, 37.9) | 0.95 (0.83, 2.83) | 0.3 (0.3, 0.63) | 106 (21%) | 4 (0.8%) | 25 (5%) | 6 (1.2%) |
| >320 | 19.4 (13.9, 35) | 0.99 (0.83, 3.1) | 0.51 (0.3, 1.0) | 119 (23%) | 3 (0.6%) | 37 (7%) | 5 (1%) |
| Asthma§ | P = 0.79 | P < 0.001‡ | P = 0.26 | P = 0.003‡ | P = 1 | P = 0.001‡ | P = 0.8 |
| No diagnosis | 19.2 (13.7, 32.4) | 0.96 (0.82, 1.9) | 0.3 (0.3, 0.8) | 250 (17%) | 9 (0.7%) | 81 (6%) | 15 (1%) |
| Diagnosis | 19.2 (13, 34.8) | 0.89 (0.76, 1.18) | 0.3 (0.3, 0.8) | 123 (23%) | 3 (0.6%) | 12 (2%) | 4 (1%) |
| Trigger | P < 0.001 | P < 0.001 | P < 0.001 | P = 0.16 | P < 0.001 | P = 0.48 | P = 0.27 |
| Food | 17 (12.7, 25.2) | 0.91 (0.8, 1.1) | 0.3 (0.3, 0.51) | 126 (18%) | 18 (3%) | 5 (1%) | 7 (1%) |
| Drug | 28.1 (18.5, 54.7) | 0.96 (0.79, 3.5) | 0.51 (0.3, 1.1) | 11 (19%) | 5 (9%) | 0 | 0 |
| Serum | 23.5 (18.2, 46.3) | 1.6 (0.88, 4.3) | 1.2 (0.3, 4.5) | 16 (33%) | 8 (16%) | 1 (2%) | 2 (4%) |
| Venom | 19.7 (12.7, 37.0) | 0.9 (0.8, 1.0) | 0.3 (0.3, 0.63) | 4 (17%) | 2 (9%) | 0 | 0 |
| Unspecified | 20.2 (13.9, 36.2) | 0.95 (0.8, 2.8) | 0.45 (0.3, 1.0) | 216 (19%) | 50 (5%) | 6 (1%) | 10 (1%) |
*
Systolic blood pressure, calculated using the American College of Critical Care shock guideline.22
†
Median (25%, 75%).
‡
P < .05.
§
According to International Classification of Diseases, Ninth Revision or International Classification of Diseases, Tenth Revision code.