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The roles of past behavior and health beliefs in predicting medication adherence to a statin regimen.
- Source :
- Patient Preference & Adherence; 2012, Vol. 6, p643-651, 9p
- Publication Year :
- 2012
-
Abstract
- Purpose: Current medication-adherence predictive tools are based on patient medication-taking beliefs, but studying past behavior may now be a more explanatory and accessible method. This study will evaluate if past medication-refill behavior for a statin regimen is more predictive of medication adherence than patient medication-taking health beliefs. Patients and methods: This prospective longitudinal study was implemented in a national managed care plan in the United States. A group of 1433 statin patients were identified and followed for 6 months. Medication-taking health beliefs, collected from self-reported mail questionnaires, and past medication-refill behavior, using proportion of days covered (PDC), were collected prior to 6-month follow-up. Outcomes were measured using categorical PDC variable (of adherence, PDC < 85%, versus nonadherence, PDC < 85%), with model fit estimated using receiver operator characteristic analysis. Results: The area under the receiver operator characteristic curve for past behavior (A<subscript>z</subscript> = 0.78) was significantly greater (P < 0.05) than for patient health beliefs (A<subscript>z</subscript> = 0.69), indicating that past prescription-refill behavior is a better predictor of medication adherence than prospective health beliefs. Among health beliefs, the factor most related to medication adherence was behavioral intent (odds ratio, 5.12; 95% confidence interval, 1.84 to 15.06). The factor most strongly related to behavioral intent was impact of regimen on daily routine (odds ratio, 3.3; 95% confidence interval, 1.41 to 7.74). Conclusion: Electronic medical records and community health-information networks may make past prescription-refill rates more accessible and assist physicians with managing medicationregimen adherence. Health beliefs, however, may still play an important role in influencing medication-taking behaviors. [ABSTRACT FROM AUTHOR]
- Subjects :
- STATINS (Cardiovascular agents)
MEDICAL records
HEALTH insurance
MEDICAL care
Subjects
Details
- Language :
- English
- ISSN :
- 1177889X
- Volume :
- 6
- Database :
- Complementary Index
- Journal :
- Patient Preference & Adherence
- Publication Type :
- Academic Journal
- Accession number :
- 81029095
- Full Text :
- https://doi.org/10.2147/PPA.S34711