Characterizing weekly self-reported antihypertensive medication nonadherence across repeated occasions.
BACKGROUND: Little is known about weekly variability in medication nonadherence both between and within persons. PURPOSE: To characterize medication nonadherence across repeated, closely spaced occasions. METHODS: This prospective cohort study comprised four unannounced telephone assessment occasions, each separated by approximately 2 weeks. On each occasion, adult outpatients taking at least a single antihypertensive medication completed a measure of extent of, and reasons for, nonadherence. RESULTS: Two hundred and sixty-one participants completed 871 (83%) of 1,044 occasions. Nonadherence was reported on 152 (17.5%) of 871 occasions by 93 (36%) of 261 participants. The most commonly endorsed reasons for nonadherence were forgetting (39.5%), being busy (23.7%), and traveling (19.7%). Among 219 participants completing at least three occasions, 50% of the variability in extent of nonadherence was a result of within-person fluctuations, and 50% was a result of between-person differences. CONCLUSION: Interventions to reduce nonadherence should be informed by variability in the extent of nonadherence and specific reasons for nonadherence.
Duke Scholars
Published In
DOI
ISSN
Publication Date
Volume
Start / End Page
Location
Related Subject Headings
- 4203 Health services and systems
- 1103 Clinical Sciences
Citation
Published In
DOI
ISSN
Publication Date
Volume
Start / End Page
Location
Related Subject Headings
- 4203 Health services and systems
- 1103 Clinical Sciences