期刊
PATIENT EDUCATION AND COUNSELING
卷 104, 期 6, 页码 1445-1450出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.pec.2020.11.024
关键词
COPD; Health literacy; Medication beliefs and adherence; Structural equation models; COPD illness
资金
- National Heart, Lung, and Blood Institute, USA [R01HL105385]
In older COPD patients, health literacy and illness and medication beliefs play a role in medication adherence, with medication concerns and necessity mediating the relationship between health literacy and adherence.
Objective: To determine the relative contributions of health literacy (HL) and illness and medication beliefs to medication adherence among older COPD patients and determine the pathways through which they operate. Methods: The study was conducted using data from a prospective cohort of COPD patients in New York City and Chicago. We used structural equation modeling to examine the pathways linking HL, through medications and illness beliefs, with COPD medication adherence. Results: Out of 393 older adults with COPD, 123 (31%) had limited HL and 208 (53%) reported low adherence to daily COPD medications. Those with limited HL were more likely to have low medication adherence (p < 0.0001). Medications concerns (p = 0.001) and medication necessity (p = 0.003) demonstrated a mediational role between HL and adherence. However, in the final multivariate model, HL did not have direct effect on medication adherence (p = 0.12) and illness beliefs (p = 0.16) did not demonstrate a mediational role between HL and adherence. Conclusion: Our findings suggest that low HL is not a direct predictor of poor medication adherence among COPD patients. Practice implications: Addressing medication concerns and reinforcing the need for daily COPD medications may be a more effective strategy for increasing adherence in this population. (c) 2020 Elsevier B.V. All rights reserved.
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