Variables | 1 ED visit | 2 ED visits | ≥ 3 ED visits | P value |
---|---|---|---|---|
Number of ED visits for COPD, no. | 69,398 | 34,010 | 51,328 | – |
30-day ED revisit rate for COPD, % (95% CI)* | – | 10.5 (10.1-10.8) | 30.0 (29.6-30.4) | <0.001 |
Hospitalization rate for COPD, % (95% CI) | 62.3 (62.0-62.7) | 64.9 (64.4-65.4) | 62.1 (61.6-62.5) | <0.001 |
Near-fatal event rate, % (95% CI) | 5.8 (5.6-6.0) | 8.2 (7.9-8.5) | 8.8 (8.6-9.1) | <0.001 |