Developing an adherence in hypertension questionnaire short version: MUAH-16

• Autor(a) principal: Cabral, Ana C.
• Data de Publicação: 2017
• Outros Autores: Castel-Branco, Margarida, Caramona, Margarida, Fernandez-Llimos, Fernando, Figueiredo, Isabel V.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10316/101132; https://doi.org/10.1111/jch.13137

The Maastricht Utrecht Adherence in Hypertension (MUAH) questionnaire provides clinicians with information about the causes of a patient’s poor adherence to antihy‐ pertensive drugs. In this study, the authors aimed to develop and validate a short ver‐ sion of the MUAH questionnaire. After an exploratory factor analysis, the number of MUAH items was reduced. The original MUAH questionnaire (model 1) was compared with the 16-item MUAH short version (model 2). Next, this short version of MUAH (MUAH-16) with all factors correlated (model 2a) was compared with the short version of MUAH with four subscales that contribute to a global factor of adherence (model 2b). Model 1 had a poor fit to the data (χ2 269 = 663.41, P < .001, comparative fit index = 0.695, root mean square error of approximation = 0.06), and model 2 had a very good fit to the data (χ2 100 = 171.07, P < .001, comparative fit index = 0.92, root mean square error of approximation = 0.04). When comparing model 2a with model 2b, the chi-square difference of the model (Δχ2 2 = 4.06; P = .067) revealed that the fits of both models were not significantly different. These findings suggest that MUAH-16 better represents a patient’s adherence to antihypertensive medication than the origi‐ nal MUAH questionnaire.