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Introduction: The Dietary Sodium Restriction Questionnaire (DSRQ) was designed to assess attitudes and behaviors of patients with heart failure (HF) related to following a low-sodium diet. Recently, it has been translated and culturally adapted for use in Brazil. However, further validation of the instrument is required before it can be used in the management of patients with HF in Brazil. Objective: To test the reliability and validity of the Brazilian version of the DSRQ. Methods: Face and content validity were assessed by a panel of experts. Construct validity was tested using exploratory and confirmatory factor analysis. Reliability was tested using Cronbach’s alpha to assess the internal consistency of the instrument. Results: A total of 206 systolic HF outpatients were assessed (mean age, 60.4 ± 11.9 years). Face and content validity analysis showed equivalence between the Brazilian version and the original instrument. In the exploratory factor analysis, the principal component analysis (PCA) yielded four factors with eigenvalues greater than 1. Three models were tested in the confirmatory factor analysis, and the three-factor model resulting from the PCA showed the best fit, accounting for 49% of the variance. Alpha values obtained for the attitude/ subjective norm, perceived behavioral control, and dependent behavior subscales were 0.71, 0.67, and 0.79, respectively. Conclusions: Our results suggest that the final validated Brazilian version of the DSRQ is a valid and reliable tool for measuring attitudes and behaviors related to following a low-sodium diet in Brazilian patients with HF.
Palabras Clave: Validation studies. Questionnaires. Dietary Sodium. Heart failure. Dietary sodium restriction questionnaire.
Juan Luis Bonilla Palomas , Antonio Luis Gámez López , Mirian Moreno Conde , María Cristina López Ibáñez , Patricia Castellano García , Carlos Javier Ráez Ruiz , Rocío Ruíz Quirós , Esmeralda Ramiro Ortega
José María Pérez Ruiz
Ana Cantón Blanco
Hugo Alejandro Carrillo-Arango , Robinson Ramírez-Vélez
Daniel Baldó Vela , Noelia Bonfanti
Luis Guerra-Sánchez , Mar Fresno-Flores , Carmen Martínez-Rincón
Raquel Costa Silva Dantas-Komatsu , Fernanda Lambert de Andrade Freire , Niethia Regina Dantas de Lira , Rosiane Viana Zuza Diniz , Severina Carla Vieira Cunha Lima , Lucia Fatima Campos Pedrosa , Karine Cavalcanti Maurício Sena-Evangelista
Ángel Roco-Videla , Marisol Hernández Orellana , Omar Silva González
Julieta Ángel García , Yolanda Flores Peña , Pedro E. Trujillo Hernández , Hermelinda Áviila Alpirez , Juana M. Gutiérrez Valverde
Juan Luis Bonilla Palomas , Antonio Luis Gámez López , Mirian Moreno Conde , María Cristina López Ibáñez , María Amparo Moreno Villar
Mei Jiang , Mengyun Sun , Xuan Zhang , Ruijian Li
Jie Tang , Dan Chen , Lisha Mu , Pingping Yu , Tao Gong , Huini Xu , Ziyan Zhang , Shuwen Cai , Lihong Mu , Ying Mei
Pilar Matía Martín , María José Castro Alija , Viviana Loria Kohen , Rocío Campos del Portillo , Samara Palma Milla , Marlhyn Valero Pérez , Miguel Ángel Martinez Olmos , M.ª Teresa Moríes Álvarez , Francisca García Torres , Elena Carrillo Lozano , Pilar Plaza Blázquez , Francisco Pita Gutiérrez , Carmen Gómez Candela
Ana Zugasti Murillo , M.ª Jesús Chinchetru , Rosa Burgos Peláez , José Manuel García Almeida , Pilar Matía Martín , Samara Palma Milla , Alejandro Sanz Paris , José Joaquín Alfaro-Martínez , Ana Artero-Fullana , Alfonso Calañas Continente , Katherine García Malpartida , Víctor González-Sánchez , María Laínez López , Antonio Jesús Martínez Ortega , Juana Oliva Roldán , Clara Serrano-Moreno , José Pablo Suárez Llanos , Ángela González-Díaz Faes
Carla Guzmán Pincheira , Fernanda Fierro Jara
Bárbara Romano-Andrioni , Albert Martín Lleixà , Marcos Carrasco-Serrano , Susan Barba Valverde , Marta Quintela , Inmaculada Pérez , Beatriz Bayés Genís , Marta Arias-Guillén
Lisset Pantoja-Arévalo , Eva Gesteiro , Sergio Calonge-Pascual , Margarita Pérez-Ruiz , Rafael Urrialde , Marcela González-Gross
Tania Sanchez-Murguia , Erika Martínez-López , Roberto Rodriguez-Echevarria , Andrea Madrigal-Juárez , Juan José Rivera-Valdés , Saraí Citlalic Rodríguez-Reyes , Nathaly Torres-Castillo
Gabriel José Ayala Carrascal , María Paula Blanco Bustos , Laura Valentina López Rodríguez , Andrés Sebastián Villa Garzón , Jonathan Alexander Cortés Vásquez , Ismena Mockus
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