Demographic characteristics and hospital outcomes among 2,344 adult Northern California Kaiser Permanente members hospitalized for asthma
| Characteristic | Hospital only | ICU admission | p-value |
| Subjects n | 2035 | 309 | |
| Age years | 55.5±17.7 | 55.3±17.5 | 0.90 |
| Female sex | 1421 (70) | 206 (67) | 0.26 |
| White race | 1394 (69) | 186 (60) | 0.004 |
| Hospital length of stay days, | 3.2±2.7 | 7.4±7.0 | |
| 3.0 (1.0–4.0) | 5.0 (3.0–9.0) | <0.0001 | |
| Inpatient mortality | 17 (0.8) | 31 (10) | <0.001 |
data presented as mean±sd
data presented as n (%)
data presented as median, 25th–75th interquartile range
P-values were determined by the following tests: age was analysed by t-test; sex, race, and mortality by Chi-squared test; length of stay by Wicoxon rank-sum test. ICU: intensive care unit.