Development of a Specific Questionnaire Measuring Patient Satisfaction with Glaucoma Treatment: Glausat
2010
Objective: Patient satisfaction with glaucoma therapy is one of the aspects that affects adequate adherence to treatment; therefore, it would be interesting to measure the satisfaction properly. We present the development process and psychometric properties of a new instrument for measuring patient satisfaction with glaucoma treatment.Material and methods: After collection and discussion of contents, a 38-item questionnaire was proposed and arranged into seven theoretical domains. The questionnaire was applied to a sample of 194 patients and its length was reduced using an exploratory factor analysis. Psychometric properties were assessed under classic theory.Results: The final questionnaire is formed by 22 items grouped into seven dimensions: expectations and beliefs about treatment, ease of use, efficacy, undesired effects, impact on health-related quality of life, medical care, and general satisfaction with treatment. Some dimensions correlated slightly. The reliability of the dimensions ranged from 0....
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