RESUMEN

OBJECTIVE: To assess heart failure (HF) knowledge, adherence to lifestyle recommendations, and quality of life (QOL) among Koreans with HF and identify factors influencing QOL. METHODS: A cross-sectional and correlational design was used and a total of 142 Koreans with HF were recruited between April 2012 and September 2013. Data were analyzed using multiple logistic regression with SPSS version 21.0. RESULTS: The mean age of participants was 64.1 ± 7.4 years. A higher proportion of participants were male, married, unemployed, had a high education level, and class I New York Heart Association (NYHA) functional status. A higher proportion of participants had ≥2 comorbidities and the most prevalent comorbidity was diabetes. The mean score of HF knowledge was 6.9 (possible range 0-15) and the most frequent incorrect items were "proper actions to reduce thirst" and "causes of leg swelling" in both better and worse QOL groups. Among the recommended lifestyle, pneumococcal vaccination had the least adherence in both groups. Multiple logistic regression showed that patients in NYHA class I, with a higher left ventricular ejection fraction, who had knowledge of "amount of fluid intake a day" and consumed more than moderate alcohol tended to have better QOL. Conclusion: More active interventions targeting HF knowledge in proper actions to reduce thirst, causes of leg swelling, and the amount of fluid intake per day are required. Patients with HF in more serious condition need special attention regarding the risk of worse QOL. The role of alcohol consumption in QOL among HF patients in Korea needs further exploration.

Asunto(s)

Pueblo Asiatico/psicología , Conocimientos, Actitudes y Práctica en Salud/etnología , Estilo de Vida Saludable , Insuficiencia Cardíaca/terapia , Cooperación del Paciente , Calidad de Vida , Conducta de Reducción del Riesgo , Anciano , Comorbilidad , Estudios Transversales , Femenino , Estado de Salud , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/etnología , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Factores Protectores , República de Corea/epidemiología , Medición de Riesgo , Factores de Riesgo , Resultado del Tratamiento

RESUMEN

BACKGROUND: Little is known about the functional health literacy (FHL) associated with medication adherence in elderly patients. The aim of this study was to examine the FHL among older adults and identify influencing factors that can predict medication adherence. METHODS: This was a cross-sectional survey. Participants (n=160) aged 65 years and older were selected from outpatient clinics of 3 tertiary care hospitals, 6 community pharmacies, and 2 senior centers between November 1 and 30, 2014. The participants' FHL was measured using the Korean Functional Health Literacy Test, which consists of 15 items including 8 numeracy and 7 reading comprehension items. Medication adherence was measured by the Adherence to Refills and Medication Scale. Descriptive statistics, chi-square or Fisher's exact test, and multiple regression analyses were used to analyze the data. RESULTS: The mean score of the total FHL was 7.72±3.51 (range 0-15). The percentage of the total number of correct answers for the reading comprehension subtest and numeracy subtest were 48.1% and 54.4%, respectively. Among 160 participants, 52.5% showed low adherence to medication. The factors affecting medication adherence included the patient's degree of satisfaction with the service (ß=-0.215, P=0.022), sufficient explanation of medication counseling (ß=-0.335, P=0.000), education level (ß=-0.153, P=0.045), health-related problems (ß=-0.239, P=0.004), and dosing frequency (ß=0.189, P=0.018). CONCLUSION: In this study, we found medication adherence of elderly patients was associated with education level, health-related problems, dosing frequency, satisfaction with patient counseling, and explanation of medication, but no association was found with FHL. Pharmacists should consider elderly patients' individual characteristics such as educational background and specific patient-related health problems, provide sufficient information and explanation of medication, and ensure patient satisfaction with the counseling.