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Daily Activities: The Impact of COPD and Cognitive Dysfunction
Amanda M Brunette1, Kelsey Warner2,3, Kristen E Holm4,5
1University of Iowa, Department of Psychological and Brain Sciences, Iowa City, IA 52242, USA.
Summary
Cognitive function, specifically memory recall, is linked to daily activity limitations in chronic obstructive pulmonary disease (COPD) patients. Interventions targeting cognition may improve daily engagement for individuals with COPD.
Area of Science:
- Pulmonary Medicine
- Neuropsychology
- Gerontology
Background:
- Chronic obstructive pulmonary disease (COPD) significantly impacts patients' functional status, extending beyond airflow limitation.
- Pulmonary function tests alone do not fully capture the daily activity challenges faced by individuals with COPD.
Purpose of the Study:
- To investigate the relationship between cognitive domains and daily activity performance in former smokers with COPD.
- To identify specific cognitive deficits associated with functional difficulties in COPD patients.
Main Methods:
- A cross-sectional study involving 89 former smokers assessed cognition using a neuropsychological battery.
- Pulmonary function, daily activity (St. George's Respiratory Questionnaire Activity Subscale, Lawton IADL Scale), and other clinical factors were measured.
- Statistical analyses examined differences in daily activity between COPD and non-COPD groups and associations between cognition and activity in the COPD group.
Main Results:
- Former smokers with COPD reported significantly greater difficulties in daily activities compared to those without COPD.
- Poorer delayed recall was significantly associated with increased daily activity limitations in COPD patients, even after adjusting for clinical covariates.
- The association remained significant when controlling for airflow limitation severity, exercise tolerance, oxygen use, dyspnea, and mental health symptoms.
Conclusions:
- Cognitive function, particularly memory, plays a crucial role in the daily functioning of patients with COPD.
- Findings suggest that cognitive impairments contribute to functional limitations beyond respiratory disease severity.
- Future research should explore cognitive interventions to enhance daily activity engagement in COPD management.
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