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Randomized Controlled Trial
. 2011 Jul-Aug;25(6):372-8.
doi: 10.4278/ajhp.090123-QUAN-26.

Medication adherence among rural, low-income hypertensive adults: a randomized trial of a multimedia community-based intervention

Michelle Y Martin  1 , Young-il Kim, Polly Kratt, Mark S Litaker, Connie L Kohler, Yu-Mei Schoenberger, Stephen J Clarke, Heather Prayor-Patterson, Tung-Sung Tseng, Maria Pisu, O Dale Williams
Affiliations
Randomized Controlled Trial

Medication adherence among rural, low-income hypertensive adults: a randomized trial of a multimedia community-based intervention

Michelle Y Martin et al. Am J Health Promot. 2011 Jul-Aug.

Abstract

Purpose: Examine the effectiveness of a community-based, multimedia intervention on medication adherence among hypertensive adults.

Design: Randomized controlled trial.

Setting: Rural south Alabama.

Subjects: Low-income adults (N = 434) receiving medication at no charge from a public health department or a Federally Qualified Health Center.

Intervention: Both interventions were home-based and delivered via computer by a community health advisor. The adherence promotion (AP) intervention focused on theoretical variables related to adherence (e.g., barriers, decisional balance, and role models). The cancer control condition received general cancer information.

Measures: Adherence was assessed by pill count. Other adherence-related variables, including barriers, self-efficacy, depression, and sociodemographic variables, were collected via a telephone survey.

Analysis: Chi-square analysis tested the hypothesis that a greater proportion of participants in the AP intervention are ≥80% adherent compared to the control group. General linear modeling examined adherence as a continuous variable.

Results: Participants receiving the intervention did not differ from individuals in the control group (51% vs. 49% adherent, respectively; p = .67). Clinic type predicted adherence (p < .0001), as did forgetting to take medications (p = .01) and difficulty getting to the clinic to obtain medications (p < .001).

Conclusions: Multilevel interventions that focus on individual behavior and community-level targets (e.g., how health care is accessed and delivered) may be needed to improve medication adherence among low-income rural residents.

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References

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