Cognition, symptom perception, and medication non-adherence in older adults with asthma. (15th February 2022)

• Record Type: Journal Article
• Authors: Becker, Jacqueline H.; Feldman, Jonathan M.; Arora, Arushi; Busse, Paula J.; Wisnivesky, Juan P.; Federman, Alex D.
• Is Part Of: Journal of asthma. Volume 59:Number 3(2022)
• Page Start: 607
• Page End: 615
• Publication Date: 2022-02-15
• Subjects: Asthma -- adherence -- cognition -- elderly -- symptom perception; Asthma -- Periodicals; 616.238005
• DOI: 10.1080/02770903.2020.1856867
• Languages: English
• ISSNs: 0277-0903

Abstract

Abstract: Background: Cognitive impairment (CI) is highly prevalent in elderly asthmatics and is associated with worse asthma self-management (SM) and outcomes. CI may also explain why older adults may under-perceive asthma symptoms. We hypothesized that CI would be associated with low medication adherence and asthma symptom under-perception (ASP). We also hypothesized that ASP would mediate the relationship between CI and medication adherence. Methods: Participants of this longitudinal cohort study were asthmatics ( N = 334) ≥60 years (51% Hispanic, 25% Black). Cognitive measures assessed general cognition, attention, processing speed, executive functioning, memory, and language. Measures of SM were self-reported and electronically measured adherence to controller medications. ASP was assessed for 6 weeks by participants entering estimates of peak expiratory flow (PEF) into a programmable peak flow meter, followed by PEF blows. Participants were blinded to actual PEF values. Percentage of time that participants were in the over-perception zone was calculated as an average. Results: In regression analyses, those with impairments in memory and general cognition had lower odds ratios (OR) for self-reported non-adherence (OR: 0.96, 95% CI 0.93 − 0.98 & OR: 0.90, 95% CI 0.83 − 0.96, respectively). CI was not associated with electronically measured non-adherence or ASP. In structural equation modeling, while CI was associated with adherence ( β = 0.04, SE = 0.021, p = 0.04), ASP did not mediate this relationship. Conclusions: While results confirmed the importance of cognition in asthma SM, these findings were not linked to ASP. Future analyses are needed to understand the role of confounding factors.