Pharmacotherapy
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Randomized Controlled Trial Multicenter Study Clinical Trial
Effect of self-efficacy and social support on adherence to antihypertensive drugs.
To determine the relationship between poor adherence and self-efficacy or social support after a pharmacist intervention. ⋯ Social support and self-efficacy improved significantly in the intervention group at the end of the pharmacist intervention. Drug adherence was correlated with self-efficacy even though drug adherence did not improve significantly in the intervention group. The fact that social support and self-efficacy improved as a function of duration of study participation suggests that participation in a research study may have had a positive influence on these measures. Even though the changes in social support, self-efficacy, and drug adherence were modest, there was significantly better blood pressure control in the intervention group compared with the control group. These findings indicate that changes in drug adherence, self-efficacy, or social support probably played a minor role in the blood pressure outcomes in these studies.