[Validation study of the Spanish adaptation of the satisfaction with inhaled asthma treatment questionnaire]. / Estudio de validación de la versión adaptada al castellano del cuestionario de satisfacción con la medicación inhalada en pacientes asmáticos (SATQ).

OBJECTIVE: Although satisfaction with asthma treatment is an important variable, it has received little attention and few validated measurement instruments are available. The aim of this study was to assess the psychometric properties and the feasibility of the Spanish adaptation of the Satisfaction With Asthma Treatment Questionnaire (SATQ) for inhaled medication. PATIENTS AND METHODS: This cross-sectional study to validate the adapted SATQ included 239 patients (67.8% women) with stable asthma (mean age, 43.3 years; forced expiratory volume in 1 second, 89% of predicted) and a median time since diagnosis of 10 years. Intermittent asthma was reported in 23.0% of the patients and severe persistent disease in 15.9%. Patients filled out the questionnaire twice. RESULTS: A 4-dimensional factorial structure could be discerned. These dimensions were similar to the validation of the original questionnaire and explained 55.1% of the variance. Internal consistency was acceptable (Cronbach alpha, 0.880 for the overall score and 0.600-0.866 for subscales), as was reliability (intraclass correlation coefficient, 0.912 for the overall score and 0.841-0.916 for subscales). A significant moderate correlation was observed between the overall score and physician--and patient--reported satisfaction (rho=0.295 and 0.507, respectively). Three of the 4 subscales were able to discriminate between categories of the Global Initiative for Asthma. The questionnaire was completed in less than 10 minutes by 92.5% of the patients, and 93.7% left no field blank. CONCLUSIONS: The Spanish adaptation of the SATQ is a useful, user-friendly instrument for measuring satisfaction with inhaled treatment.

Estudio de validación de la versión adaptada al castellano del cuestionario de satisfacción con la medicación inhalada en pacientes asmáticos (SATQ) / Validation study of the spanish adaptation of the satisfaction with inhaled asthma treatment questionnaire

Objetivo: La satisfacción con el tratamiento en el asma es un aspecto trascendente, pero escasamente estudiado y con pocos instrumentos de medida validados. Se pretende evaluar las propiedades psicométricas y la factibilidad de la versión adaptada al castellano del cuestionario Satisfaction with inhaled Asthma Treatment Questionnaire (SATQ). Pacientes y métodos: Se ha diseñado un estudio transversal analítico para la validación de un cuestionario. Se incluyó a 239 pacientes con asma estable (edad media: 43,3 años; un 67,8% mujeres; volumen espiratorio forzado en el primer segundo, un 89% del teórico,), con una mediana de tiempo de diagnóstico de 10 años. El 23,0% presentaba asma intermitente y el 15,9%, persistente grave. Cumplimentaron el cuestionario en 2 ocasiones. Resultados: Se encontró una estructura factorial con 4 dimensiones, similares a la validación original que explicaban el 55,1% de la variancia. La consistencia interna fue adecuada (alfa de Cronbach de 0,880 para la puntuación total y de 0,600-0,866 para las subescalas), así como la fiabilidad (coeficiente de correlación intraclase de 0,912 para la puntuación total y de 0,841-0,916 para las subescalas). Se observó una correlación significativa, de intensidad moderada, entre la puntuación total y la satisfacción referida por médico y paciente (rho = 0,295 y 0,507, respectivamente). Tres de las 4 subescalas fueron capaces de discriminar entre las categorías de la Global Initiative for Asthma (GINA). El 92,5% de los pacientes completaron el cuestionario en menos de 10 min y el 93,7% no dejaron ninguna pregunta en blanco. Conclusiones: La versión adaptada del SATQ es una herramienta útil y fácil de usar para medir la satisfacción con el tratamiento inhalado

Objective: Although satisfaction with asthma treatment is an important variable, it has received little attention and few validated measurement instruments are available. The aim of this study was to assess the psychometric properties and the feasibility of the Spanish adaptation of the Satisfaction With Asthma Treatment Questionnaire (SATQ) for inhaled medication. Patients and methods: This cross-sectional study to validate the adapted SATQ included 239 patients (67.8% women) with stable asthma (mean age, 43.3 years; forced expiratory volume in 1 second, 89% of predicted) and a median time since diagnosis of 10 years. Intermittent asthma was reported in 23.0% of the patients and severe persistent disease in 15.9%. Patients filled out the questionnaire twice. Results: A 4-dimensional factorial structure could be discerned. These dimensions were similar to the validation of the original questionnaire and explained 55.1% of the variance. Internal consistency was acceptable (Cronbach alpha, 0.880 for the overall score and 0.600-0.866 for subscales), as was reliability (intraclass correlation coefficient, 0.912 for the overall score and 0.841-0.916 for subscales). A significant moderate correlation was observed between the overall score and physician--and patient--reported satisfaction (rho=0.295 and 0.507, respectively). Three of the 4 subscales were able to discriminate between categories of the Global Initiative for Asthma. The questionnaire was completed in less than 10 minutes by 92.5% of the patients, and 93.7% left no field blank. Conclusions: The Spanish adaptation of the SATQ is a useful, user-friendly instrument for measuring satisfaction with inhaled treatment