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• W1994174312 abstract "Being an easy-to-use (eight items) quality of life questionnaire specific to GERD, the Reflux-Qual Short form (RQS®) was developed for use in everyday practice. The purpose of this study was to assess the psychometric properties of the RQS®. The reliability of the RQS® was measured by the Cronbach's alpha coefficient and its clinical validity by comparing the RQS score for increasing clinical severity groups. The RQS® discriminative power was compared with that of the SF12. Sensitivity to change over time was measured by calculating effect-sizes. The reliability and validity of the questionnaire were assessed on a sample of 1195 patients. Its psychometric properties were very satisfactory: Cronbach alpha = 0.84; RQS score significantly reduced for the worst-affected patients; the discriminative power was up to 5 times higher when compared with the SF-12. Sensitivity to change over time, evaluated with 362 patients, showed highly significant differences between groups with different levels of clinical progression (P = 0.0001). The RQS® is a quality of life measurement instrument specific to GERD which is short, reliable, valid, and sensitive to within and between-subject differences. Un questionnaire spécifique du RGO facile à utiliser, le Reflux-Qual Simplifié (RQS®), a été développé pour une utilisation en pratique médicale courante. L’objet de cette étude était de vérifier les propriétés psychométriques du RQS®. La fiabilité du RQS® a été évaluée par le calcul du coefficient alpha de Cronbach et sa validité par comparaison du score RQS pour différents niveaux de sévérité de la maladie. Le pouvoir discriminant du RQS® a été comparé à celui du SF12. La sensibilité aux changements dans le temps a été mesurée en calculant des effect-sizes. La fiabilité et la validité du questionnaire ont été évaluées sur un échantillon de 1195 malades. Ses propriétés psychométriques étaient satisfaisantes : coefficient alpha de Cronbach = 0,84 ; le score RQSétait significativement diminué pour les malades les plus affectés ; le pouvoir discriminant était jusqu’à 5 fois plus important que celui du SF-12. La sensibilité aux changements dans le temps, mesurée sur 362 malades, montrait des différences hautement significatives entre groupes de malades ayant une progression clinique différente (P = 0,0001). Le RQS® est un instrument de mesure de la qualité de vie spécifique du RGO qui est court, fiable, valide et sensible aux différences intra et inter-sujets." @default.
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• W1994174312 date "2005-08-01" @default.
• W1994174312 modified "2023-09-24" @default.
• W1994174312 title "Validation of the short-form REFLUX-QUAL® (RQS®), a gastro-esophageal reflux disease (GERD) specific quality of life questionnaire" @default.
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• W1994174312 doi "https://doi.org/10.1016/s0399-8320(05)86350-x" @default.
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