期刊
PATIENT PREFERENCE AND ADHERENCE
卷 5, 期 -, 页码 195-206出版社
DOVE MEDICAL PRESS LTD
DOI: 10.2147/PPA.S18481
关键词
adherence; hypertension; antihypertensive therapy
资金
- Novartis Pharmaceuticals Corporation
Background: Although hypertension is a major risk factor for cardiovascular disease, adherence to hypertensive medications is low. Previous research identifying factors influencing adherence has focused primarily on broad, population-based approaches. Identifying specific barriers for an individual is more useful in designing meaningful targeted interventions. Using customized telephonic outreach, we examined specific patient-reported barriers influencing hypertensive patients' nonadherence to medication in order to identify targeted interventions. Methods: A telephone survey of 8692 nonadherent hypertensive patients was conducted. The patient sample comprised health plan members with at least two prescriptions for antihypertensive medications in 2008. The telephone script was based on the target drug associated with greatest nonadherence (medication possession ratio [MPR] <80%) during the four-month period preceding the survey. Results: The response rate was 28.2% of the total sample, representing 63.8% of commercial members and 37.2% of Medicare members. Mean age was 63.4 years. Mean MPR was 61.0% for the target drug. Only 58.2% of Medicare respondents and 60.4% of commercial respondents reported missing a dose of medication. The primary reason given was forgetfulness (61.8% Medicare, 60.8% commercial), followed by being too busy (2.7% Medicare, 18.5% commercial) and other reasons (21.9% Medicare, 8.1% commercial) including travel, hospitalization/sickness, disruption of daily events, and inability to get to the pharmacy. Prescription copay was a barrier for less than 5% of surveyed patients. Conclusion: Our findings indicate that events interfering with daily routine had a significant impact on adherence. Medication adherence appears to be a patterned behavior established through the creation of a routine and a reminder system for taking the medication. Providers should assess patients' daily schedules and medication-taking competency to develop and promote a medication routine.
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