Table 1

Charlson comorbidity index in asthma–COPD overlap studies

AsthmaCOPDOverlapp Value
Fu et al173.1±1.2 3.8±0.93.8±1.1>0.05
Miravitlles et al 50.89±1.071.44±0.78<0.001
Menezes et al 71.2±1.10.9±0.90.9±1.00.079
McDonald et al 163.6±1.24.2±0.83.6±1.1*<0.04
Blanchette et al 142.3±2.32.6±2.1<0.001
Rhee et al 15Comorbidities increased compared with COPD<0.02
  • *COPD vs overlap.