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Gepubliceerd in:

18-12-2016

Development and validation of a new questionnaire measuring treatment satisfaction in patients with non-valvular atrial fibrillation: SAFUCA^®

Auteurs: Miguel A. Ruiz, José Ramón González-Porras, José Luis Aranguren, Eduardo Franco, Fernando Villasante, José Tuñón, Tomás José González-López, Marina de Salas-Cansado, Javier Soto

Gepubliceerd in: Quality of Life Research | Uitgave 3/2017

Abstract

Objective

To develop a new questionnaire with good psychometric properties to measure satisfaction with medical care in patients with non-valvular atrial fibrillation.

Method

The initial instrument was composed of 37 items, arranged in 6 dimensions: efficacy, ease and convenience, impact on daily activities, satisfaction with medical care, undesired effects of medication, and overall satisfaction. Items and dimensions were extracted from reviewing existing instruments, 3 focus groups with chronic patients, and a panel of 8 experts. Additionally, 3 visual analog scales measuring quality of life, effectiveness, and overall satisfaction were administered. A convenience sample of 119 patients was used for item reduction. Classic psychometric theory and item analysis techniques were used (exploratory factor and confirmatory factor analysis, test–retest, and correlation with visual scales). A validation sample of 230 patients was used to assess convergent validity, and an additional 220 patients sample was used to discriminate between treatment and compliance groups.

Results

The questionnaire was reduced in length to 25 items, but the impact dimension had split in treatment inconvenience and treatment control. Overall reliability was high (α = 0.861) with acceptable dimensional reliabilities (α = 0.764–0.908). Individual dimensions correlated to varying degrees. Test–retest correlations were high (r = 0.784–0.965), and correlations with visual and already validated scales were substantial. Differences were detected between antivitamin K and new-oral-anticoagulant treatments in several dimensions (p < 0.05). Treatment satisfaction was related with compliance.

Conclusion

This new 25-item questionnaire has good psychometric properties for measuring satisfaction with medical care in patients with this condition. It is capable of detecting differences between different treatments.

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Titel: Development and validation of a new questionnaire measuring treatment satisfaction in patients with non-valvular atrial fibrillation: SAFUCA®
Auteurs: Miguel A. Ruiz
José Ramón González-Porras
José Luis Aranguren
Eduardo Franco
Fernando Villasante
José Tuñón
Tomás José González-López
Marina de Salas-Cansado
Javier Soto
Publicatiedatum: 18-12-2016
Uitgeverij: Springer International Publishing
Gepubliceerd in: Quality of Life Research / Uitgave 3/2017
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-016-1474-4

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Abstract

Objective

Method

Results

Conclusion

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