Validation of the short-form REFLUX-QUAL® (RQS®), a gastro-esophageal reflux disease (GERD) specific quality of life questionnaire

Bommelaer, 1999, Reflux gastro-oesophagien de l’adulte : définition, épidémiologie, histoire naturelle, Gastroenterol Clin Biol, 23, S3 Spechler, 1992, Epidemiology and natural history of gastro-oesophageal reflux disease, Digestion, 51, 24, 10.1159/000200911 Venables, 1997, Maintenance treatment for gastro-oesophageal reflux disease. A placebo-controlled evaluation of 10 milligrams omeprazole once daily in general practice, Scand J Gastroenterol, 32, 627, 10.3109/00365529708996509 Dimenas, 1993, Quality of life in patients with upper gastrointestinal symptoms. An improved evaluation of treatment regimens ?, Scand J Gastroenterol, 28, 681, 10.3109/00365529309098272 Dimenas, 1995, Well-being and gastrointestinal symptoms among patients referred to endoscopy owing to suspected duodenal ulcer, Scand J Gastroenterol, 30, 1046, 10.3109/00365529509101605 Wiklund, 1998, Quality of life during acute and intermittent treatment of gastro-oesophageal reflux disease with omeprazole compared with ranitidine. Results from a multicentre clinical trial. The European Study Group, Ital J Gastroenterol Hepatol, 30, 19 1999, “Diagnostic et traitement”. Conclusions et recommandations du jury : texte long, Gastroenterol Clin Biol, 23, 56 Raymond, 1999, Mesure de la qualité de vie chez les malades ayant un reflux gastro-œsophagien. Elaboration et validation d’un questionnaire spécifique, Gastroenterol Clin Biol, 23, 32 Marquis, 1995, Development and psychometric validation of a disease specific quality of life questionnaire in gastro-esophageal reflux (abstract), Quality of Life Research, 5, 457 Amouretti, 2000, Mesure de la qualité de vie dans la prise en charge du reflux gastro-oesophagien symptomatique : étude en double aveugle comparant le lansoprazole® et le cisapride® (abstract), Gastroenterol Clin Biol, 24, A137 Amouretti, 2002, Reflux-qual simplifié (RQS) : questionnaire d’évaluation de la qualité de vie spécifique du reflux gastro-esophagien développé pour la pratique courante (abstract), Gastroenterol Clin Biol, 26, A155 De la Loge C, Amouretti M, Nalet B, Robaszkiewicz M, Brin S, Schatz B. Reflux-qual short form (RQS): a quality of life (QoL) questionnaire specific to GERD developed for use in everyday practice (abstract). Gut 2002; 51(Suppl III): A223. Andrich, 1988, Rasch mode ls for measurement. Series: Quantitative applications in the social sciences Ware, 1996, A 12-Item Short-Form Health Survey: construction of scales and preliminary tests of reliability and validity, Med Care, 34, 220, 10.1097/00005650-199603000-00003 Keller, 1998, Use of structural equation modeling to test the construct validity of the SF-36 Health Survey in ten countries: results from the IQOLA Project. International Quality of Life Assessment, J Clin Epidemiol, 51, 1179, 10.1016/S0895-4356(98)00110-3 Ware, 1995 Chassany, 2002, The example of health-related Quality of Life-A European guidance document for the improved integration of health-related Quality of Life assessment in the drug regulatory process, Drug Inf J, 36, 209, 10.1177/009286150203600127 Lohr, 1996, Evaluating quality-of-life and health status instruments: development of scientific review criteria, Clin Ther, 18, 979, 10.1016/S0149-2918(96)80054-3 Assessing health status and quality-of-life instruments: attributes and review criteria. Qual Life Res 2002; 11: 193-205. Cronbach, 1951, Coefficient alpha and the internal structure of tests, Psychometrika, 16, 297, 10.1007/BF02310555 Nunnally, 1994 Hays, 1988 Campbell, 1959, Convergent and discriminant validation by the Multitrait multimethod matrix, Psychological Bulletin, 56, 85, 10.1037/h0046016 Svedlund, 1983, Controlled study of psychotherapy in irritable bowel syndrome, Lancet, 2, 589, 10.1016/S0140-6736(83)90678-5 Sjodin, 1986, Controlled study of psychotherapy in chronic peptic ulcer disease, Psychosomatics, 27, 187, 10.1016/S0033-3182(86)72711-4 Kazis, 1989, Effect sizes for interpreting changes in health status, Med Care, 27, S178, 10.1097/00005650-198903001-00015 Cohen, 1988 Beck, 1997 McNair, 1992 Spielberger, 1989 Amouretti, 2004, L’approche de la qualité de vie en médecine : de la recherche clinique à la pratique quotidienne, Gastroenterol Clin Biol, 28, 9, 10.1016/S0399-8320(04)94833-6