Korean J Health Promot.  2015 Sep;15(3):121-128. 10.15384/kjhp.2015.15.3.121.

Medication Adherence and its Predictors in Community Elderly Patients with Hypertension

• Bae SG
• Jeon HJ
• Yang HS
• Kim BK
• Park KS

• KMID: 2247206
• DOI: http://doi.org/10.15384/kjhp.2015.15.3.121

Abstract

BACKGROUND
Medication adherence is important for hypertension management but still stay low level. It is reasonable method to classify medication nonadherence into intentional nonadherence and unintentional nonadherence and manage it according to this categories. This study aimed to explore medication adherence and its predictors in community patients with hypertension, especially dividing into intentional nonadherence and unintentional nonadherence.
METHODS
Study subjects included 1,988 patients who were prescribed hypertension drugs among 2012 community health survey subjects of 10 cities in Gyeongsangnamdo and we analyzed medication adherence with hypertension and its predictors. We conducted chi-square test for nominal variable and ANOVA test for continuous variable and use multinominal regression to analyze independent predictors of intentional nonadherence and unintentional nonadherence in contrast to medication adherence.
RESULTS
Of the 1,988 patients, 49.7% were adherent, 26.1% were unintentionally nonadherent and 24.2% intentionally nonadherent. Independent predictors of unintentional nonadherence were depressive symptoms (odds ratio [OR]=1.696, P=0.047) and arthritis (OR=1.319, P=0.030) and independent predictors of intentional nonadherence were cardiocerebrovascular disease (OR=1.464, P=0.044), self-efficacy (OR=0.984, P=0.007), beliefs about medications questionnaire (necessity [OR=0.834, P<0.001] and concern [OR=1.236, P<0.001]).
CONCLUSIONS
In order to manage hypertension in community, improvement in medication adherence is needed. Depressive symptom and self-efficacy need to be managed, but especially patients'beliefs about their medication need to be considered to improve intentional nonadherence.

Keyword

Medication adherence; Hypertension; Intention

MeSH Terms

Aged*
Arthritis
Depression
Gyeongsangnam-do
Health Surveys
Humans
Hypertension*
Intention
Medication Adherence*

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