J Prev Med Public Health.  2007 May;40(3):249-258. 10.3961/jpmph.2007.40.3.249.

Antihypertensive Drug Medication Adherence of People with Disabilities and its Affecting Factors in Korea

• Park JH
• Shin Y
• Lee SY
• Park JH

• KMID: 792484
• DOI: http://doi.org/10.3961/jpmph.2007.40.3.249

Abstract

OBJECTIVES: The aims of this study were to estimate the antihypertensive medication adherence in people with a disability and a history of taking antihypertensive medication, and to identify the factors affecting medication adherence. METHODS: The National Health Insurance claims data were linked with the National Disability Registry. People with a disability, who received a prescription of antihypertensives, were identified from a total of 85,098 cases. Cumulative medication adherence (CMA) was used as an indicator of medication adherence. A CMA > 80% was defined as appropriate medication adherence. Multiple logistic regression analysis was used to identify the factors affecting medication adherence. RESULTS: The average CMA in a total of 85,098 patients was 79.5%. The appropriate adherence (CMA > or =80%) rate was 54.5% and 20.5% of patients had a CMA < 50%. Multiple logistic regression analysis revealed that the probability of appropriate adherence decreased with decreasing number of prescription days per visit, increasing number of providers, the patients' residential area moving from urban to rural areas, and when patients have an internal organ disability, auditory impairment, mobility impairment. CONCLUSIONS: The adherence to antihypertensive medication in people with a disability is influenced by various socio-economic, clinical and regional factors. In particular, the disabled who have locomotive and communication disabilities and internal organ impairments have a higher probability of under-adherence to antihypertensive medication adherence in Korea.

Keyword

Disabled persons; Hypertension; Antihypertensive agents; Patient compliance

MeSH Terms

Adult
Aged
Antihypertensive Agents/*administration & dosage
Comorbidity
Disabled Persons/*statistics & numerical data
Drug Utilization
Female
Health Services Accessibility
Humans
Insurance Claim Review
Korea/epidemiology
Logistic Models
Male
Middle Aged
National Health Programs
Patient Compliance/*statistics & numerical data
Residence Characteristics
Socioeconomic Factors