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[Validation of the Reflux Disease Questionnaire (RDQ) and Gastrointestinal Impact Scale (GIS) in patients with gastroesophageal reflux disease in the Spanish population].
Gastroenterol Hepatol. 2009 Apr; 32(4):264-73.GH

Abstract

OBJECTIVES

To assess the feasibility, reliability, validity and sensitivity of changes in the Reflux Disease Questionnaire (RDQ) and the Gastrointestinal Impact Scale (GIS).

MATERIAL AND METHODS

An observational, prospective, multicenter study was conducted in primary care centers on two visits (baseline and 16 days later) in a sample of patients with a diagnosis of gastroesophageal reflux disease (GERD) or suspicion of GERD requiring a therapeutic intervention (sensitivity to change group, n=230) and in another sample of patients with clinically controlled GERD (reliability group, n=51).

RESULTS

The RDQ questionnaire and GIS scale, both overall and for each domain, showed a Cronbach's alpha of greater than or equal to 0.70. All RDQ domains and the total score, as well as the total GIS score and impact dimension, showed a high correlation between the baseline evaluation and that performed 16 days later in stable patients. The RDQ and GIS showed very high correlations between the total scores and those of the quality of life in reflux and dyspepsia (QOLRAD) (-0.73 and 0.80, respectively), a reflux- and dyspepsia-specific quality of life scale, and a high correlation with the gastrointestinal symptoms rating scale (GSRS) (0.54 and -0.55, respectively), a general scale of gastrointestinal symptoms. Both the RDQ questionnaire and the GIS scale showed significant changes with a high effect size on improvement responses.

CONCLUSIONS

The RDQ and GIS questionnaires show very good psychometric properties, making them suitable for use in primary care.

Authors+Show Affiliations

AstraZeneca Farmacéutica Spain S.A, Madrid, España. javier.nuevo@astrazeneca.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't
Validation Study

Language

spa

PubMed ID

19371971

Citation

Nuevo, Javier, et al. "[Validation of the Reflux Disease Questionnaire (RDQ) and Gastrointestinal Impact Scale (GIS) in Patients With Gastroesophageal Reflux Disease in the Spanish Population]." Gastroenterologia Y Hepatologia, vol. 32, no. 4, 2009, pp. 264-73.
Nuevo J, Tafalla M, Zapardiel J. [Validation of the Reflux Disease Questionnaire (RDQ) and Gastrointestinal Impact Scale (GIS) in patients with gastroesophageal reflux disease in the Spanish population]. Gastroenterol Hepatol. 2009;32(4):264-73.
Nuevo, J., Tafalla, M., & Zapardiel, J. (2009). [Validation of the Reflux Disease Questionnaire (RDQ) and Gastrointestinal Impact Scale (GIS) in patients with gastroesophageal reflux disease in the Spanish population]. Gastroenterologia Y Hepatologia, 32(4), 264-73. https://doi.org/10.1016/j.gastrohep.2008.12.004
Nuevo J, Tafalla M, Zapardiel J. [Validation of the Reflux Disease Questionnaire (RDQ) and Gastrointestinal Impact Scale (GIS) in Patients With Gastroesophageal Reflux Disease in the Spanish Population]. Gastroenterol Hepatol. 2009;32(4):264-73. PubMed PMID: 19371971.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Validation of the Reflux Disease Questionnaire (RDQ) and Gastrointestinal Impact Scale (GIS) in patients with gastroesophageal reflux disease in the Spanish population]. AU - Nuevo,Javier, AU - Tafalla,Mónica, AU - Zapardiel,Javier, Y1 - 2009/04/16/ PY - 2008/11/19/received PY - 2008/12/18/accepted PY - 2009/4/18/entrez PY - 2009/4/18/pubmed PY - 2009/8/14/medline SP - 264 EP - 73 JF - Gastroenterologia y hepatologia JO - Gastroenterol Hepatol VL - 32 IS - 4 N2 - OBJECTIVES: To assess the feasibility, reliability, validity and sensitivity of changes in the Reflux Disease Questionnaire (RDQ) and the Gastrointestinal Impact Scale (GIS). MATERIAL AND METHODS: An observational, prospective, multicenter study was conducted in primary care centers on two visits (baseline and 16 days later) in a sample of patients with a diagnosis of gastroesophageal reflux disease (GERD) or suspicion of GERD requiring a therapeutic intervention (sensitivity to change group, n=230) and in another sample of patients with clinically controlled GERD (reliability group, n=51). RESULTS: The RDQ questionnaire and GIS scale, both overall and for each domain, showed a Cronbach's alpha of greater than or equal to 0.70. All RDQ domains and the total score, as well as the total GIS score and impact dimension, showed a high correlation between the baseline evaluation and that performed 16 days later in stable patients. The RDQ and GIS showed very high correlations between the total scores and those of the quality of life in reflux and dyspepsia (QOLRAD) (-0.73 and 0.80, respectively), a reflux- and dyspepsia-specific quality of life scale, and a high correlation with the gastrointestinal symptoms rating scale (GSRS) (0.54 and -0.55, respectively), a general scale of gastrointestinal symptoms. Both the RDQ questionnaire and the GIS scale showed significant changes with a high effect size on improvement responses. CONCLUSIONS: The RDQ and GIS questionnaires show very good psychometric properties, making them suitable for use in primary care. SN - 0210-5705 UR - https://www.unboundmedicine.com/medline/citation/19371971/[Validation_of_the_Reflux_Disease_Questionnaire__RDQ__and_Gastrointestinal_Impact_Scale__GIS__in_patients_with_gastroesophageal_reflux_disease_in_the_Spanish_population]_ L2 - http://www.elsevier.es/en/linksolver/ft/pii/S0210-5705(09)00307-0 DB - PRIME DP - Unbound Medicine ER -