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Table 5 Severe exacerbations and healthcare resource utilizations among COPD patients stratified by high resource use status

From: Exacerbations and healthcare resource utilization among COPD patients in a Swedish registry-based nation-wide study

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
  1. Abbreviation: RR Relative ratio
  2. 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)
  3. bAdjusted for age, gender, time since diagnosis, and Charlson’s comorbidity index