Table 5.
Severe exacerbations and healthcare resource utilizations among COPD patients stratified by high resource use status
| High resource usea | N of patients | Person years | N of events | Crude rates | Crude RR | Adjustedb RR |
|---|---|---|---|---|---|---|
| Severe exacerbations | ||||||
| No | 85,491 | 80,252 | 17,863 | 0.22 | ref. | ref. |
| Yes | 3057 | 2521 | 5293 | 2.10 | 9.43 | 8.31 |
| Healthcare resource utilization | ||||||
| No | 85,491 | 80,252 | 310,523 | 3.87 | ref. | ref. |
| Yes | 3057 | 2521 | 18,976 | 7.53 | 1.95 | 1.82 |
Abbreviation: RR Relative ratio
aBinomial variable defined by history of respiratory hospitalizations (≥2 within 1 year) and current medication use of ICS and LABA and/or LAMA (within 4 months). Categories (Yes/No)
bAdjusted for age, gender, time since diagnosis, and Charlson’s comorbidity index