COMPARISONAsthma, chronic obstructive pulmonary disease (COPD), and non-asthma/COPD groups
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This cross-sectional study of NHANES data found that adults aged 40 and older with asthma-COPD overlap (ACO) had a significantly higher prevalence of frailty compared to those with asthma or COPD alone. The study identified specific risk and protective factors for frailty within the ACO group.
Full summary
810 CHARS
Participants were categorized into ACO, asthma, COPD, and non-asthma/COPD groups. The frailty index was used to determine frailty status. The central result was that participants with ACO had a frailty prevalence of 60.2%, which was significantly higher than in those with asthma (32.3%) or COPD (40.6%). In an unadjusted model, ACO was associated with six-fold higher odds of frailty, and after adjusting for all confounders, the odds remained over four times higher compared to the reference group. Limitations include the cross-sectional design, which cannot establish causality, and potential selection bias due to diagnostic methods based on questionnaires. The findings suggest that ACO is strongly associated with frailty, highlighting the need for greater clinical attention to this patient population.
PICO
PPOPULATION
Middle-aged and elderly populations (aged ≥40 years) from the NHANES 1999–2018 cycles
