Factors Influencing Adherence to the DASH Diet in Patients with Hypertension

Main Article Content

Prapassorn Salaylanon
Doungrut Wattanakitkrileart
Autchariya Poungkaew

Abstract

            A predictive correlational research design aimed to study the influence of family support, trust in provider, body mass index, duration of treatment, and self-efficacy on adherence to the Dietary Approaches to Stop Hypertension (DASH diet) consumption in patients with hypertension. The samples consisted of 140 patients with essential hypertension, aged 18 years or above, both males and females, being treated with hypertensive medication at least 6 months, normal cognitive function, able to communicate in Thai and able to consume food on their own, who came for follow-up visits at OPD medicine in Somdech Phra Pinklao hospital. The research instruments comprised of personal information questionnaire and health record, family support questionnaire, trust in provider questionnaire, self-efficacy to consume DASH diet and adherence to the DASH diet questionnaire. The questionnaires and assessment tools were content validated and tested for reliability with a Cronbach’s alpha coefficient of 0.95, 0.94, 0.78 and 0.71, respectively. Data were analyzed using descriptive statistics and multiple regression analysis.
            The results showed that 50.7 % were male with average age of 62.1 (SD = 11.67); average duration of treatment for high blood pressure 9.62 years (SD = 8.96); BMI > 24.9 equal to 61.4%; 34.3% of the participants were adherent to DASH diet. Trust in provider, and self-efficacy together contributed for 31.3 % (Standard error = 5.909, F = 32.711, p < .01) of the variance explained in adherence to DASH diet. Only self-efficacy could predict adherence to DASH diet in patients with essential hypertension (β = .553, p < .01). Nurses should encourage hypertensive patients to have confidence to consume DASH diet such as providing information about the benefits of DASH diet, healthy food resources and giving examples of role models who consume DASH diet and become successful in controlling blood pressure.

Article Details

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Research Article

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