Development and validation of a multidimensional questionnaire assessing non-adherence to medicines

• Autor(a) principal: Santa Helena, Ernani Tiaraju de
• Data de Publicação: 2008
• Outros Autores: Nemes, Maria Ines Battistella, Eluf-Neto, José
• Tipo de documento: Artigo
• Idioma: por; eng
• Título da fonte: Revista de Saúde Pública
• Texto Completo: https://www.revistas.usp.br/rsp/article/view/32494
• topic: Patient Compliance; Questionnaires; Sensitivity and Specificity; Validity of Tests; Health Evaluation; Cooperação do Paciente; Questionários; Sensibilidade e Especificidade; Validade dos Testes; Avaliação em Saúde; Cooperación del Paciente; Cuestionarios; Sensibilidad y Especificidad; Validez de las Pruebas; Evaluación en Salud

The study aimed to develop and validate an instrument capable of measuring non-adherence to drug treatment in its multiple dimensions. The Questionário de Adesão a Medicamentos (Adherence to Medicines Questionnaire) with three questions was applied to 46 people with arterial hypertension in the city of Blumenau, Southern Brazil, in 2006. Non-adherence measures obtained were compared to four other methods (Haynes, Morisky, pill count and clinical outcome). Non-adherence measures varied according to the method. The combined Questionário de Adesão a Medicamentos non-adherence measure was 47.8% (95% CI: 32.9;63.1), whereas the gold standard was 69.6% (95% CI: 54.3;82.3). Accuracy measures to detect non-adherence showed a sensitivity of 62.5% and specificity of 85.7%, ROC curve area of 74.1%, and positive predictive value of 90.9%. Results suggest the Questionário de Adesão a Medicamentos has a good fit.