Medication regimen complexity of coronary artery disease patients.

OBJECTIVE: To determine the factors associated with the high complexity of medication regimen in patients with coronary artery disease. METHODS: A cross-sectional study was carried out in a multiprofessional cardiology outpatient clinic, in the Secondary Care of the Unified Health System, where sociodemographic (age, sex, and education), clinical (number of health conditions, cardiovascular diagnoses, and comorbidities) and pharmacotherapeutic (adherence, polypharmacy, and cardiovascular polypharmacy) characteristics were collected. These were related to complexity of medication regimen, measured through the medication regimen complexity index. The classification of high complexity of medication regimen was carried out using standardization for the older adults and stratification for adult patients, as suggested in the literature. RESULTS: The total complexity medication regimen of 148 patients had a median of 17.0 (interquartile range of 10.5). In the univariate analysis, the factors associated with high complexity were heart failure, diabetes mellitus, hypertension, five or more diseases, and non-adherence to treatment. In the final model, after logistic regression, there was a statistically significant association (p<0.05) with the variables diabetes mellitus, hypertension, and non-adherence. CONCLUSION: The high complexity of medication regimen in patients with coronary artery disease was associated with the presence of diabetes mellitus, hypertension, and reports of non-adherence to treatment.

Medication regimen complexity of coronary artery disease patients / Complexidade da farmacoterapia de pacientes com doença arterial coronariana

ABSTRACT Objective: To determine the factors associated with the high complexity of medication regimen in patients with coronary artery disease. Methods: A cross-sectional study was carried out in a multiprofessional cardiology outpatient clinic, in the Secondary Care of the Unified Health System, where sociodemographic (age, sex, and education), clinical (number of health conditions, cardiovascular diagnoses, and comorbidities) and pharmacotherapeutic (adherence, polypharmacy, and cardiovascular polypharmacy) characteristics were collected. These were related to complexity of medication regimen, measured through the medication regimen complexity index. The classification of high complexity of medication regimen was carried out using standardization for the older adults and stratification for adult patients, as suggested in the literature. Results: The total complexity medication regimen of 148 patients had a median of 17.0 (interquartile range of 10.5). In the univariate analysis, the factors associated with high complexity were heart failure, diabetes mellitus, hypertension, five or more diseases, and non-adherence to treatment. In the final model, after logistic regression, there was a statistically significant association (p<0.05) with the variables diabetes mellitus, hypertension, and non-adherence. Conclusion: The high complexity of medication regimen in patients with coronary artery disease was associated with the presence of diabetes mellitus, hypertension, and reports of non-adherence to treatment.

RESUMO Objetivo: Determinar os fatores associados à complexidade alta da farmacoterapia em pacientes com doença arterial coronariana. Métodos: Realizou-se um estudo transversal em um ambulatório multiprofissional de cardiologia na Atenção Secundária do Sistema Único de Saúde, de onde foram coletadas características sociodemográficas (idade, sexo e escolaridade), clínicas (número de condições de saúde, diagnósticos cardiovasculares e comorbidades) e farmacoterápicas (adesão, polifarmácia e polifarmácia cardiovascular). Essas características foram relacionadas com a complexidade da farmacoterapia, mensurada por meio do Índice de Complexidade da Farmacoterapia. A classificação em complexidade alta da farmacoterapia foi realizada empregando a normatização para idosos e a estratificação para pacientes adultos, sugeridas na literatura. Resultados: A complexidade da farmacoterapia total dos 148 pacientes apresentou mediana igual a 17,0 (amplitude interquartílica de 10,5). Na análise univariada, os fatores associados à complexidade alta foram insuficiência cardíaca, diabetes mellitus, hipertensão arterial, cinco ou mais doenças e não adesão. No modelo final, após regressão logística, houve associação estatisticamente significante (p<0,05) com as variáveis diabetes mellitus, hipertensão arterial e não adesão. Conclusão: A complexidade alta da farmacoterapia em pacientes com doença arterial coronariana foi associada à presença de diabetes mellitus, hipertensão arterial e relato de não adesão a medicamentos