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vol.33 issue1Dyspepsia: clinical characteristics, endoscopic and histological findings in patients of the Hospital Nacional Hipolito Unanue, during 2010 author indexsubject indexarticles search
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Revista de Gastroenterología del Perú

Print version ISSN 1022-5129


BENITES GONI, Harold et al. Validation of a modified version of SODA questionnaire (severity of dyspepsia assessment) adapted to Peru for evaluating evolution of symptoms severity in patients with dyspepsia. Rev. gastroenterol. Perú [online]. 2013, vol.33, n.1, pp.9-27. ISSN 1022-5129.

Objectives: To validate SODA (severity of dyspepsia assessment) questionnaire in our population for evaluating symptoms severity in patients with dyspepsia. Materials and methods: Content and appearance validity were measured, and then a modified questionnaire was developed. A pilot test was made and reliability, construct validity and responsiveness were measured. Results: An adequate content and appearance validity were obtained. On the pilot test, reliability of the complete questionnaire and by components had Cronbach alpha values over 0,7. Construct validity of SODA was evaluated by correlating modified SODA results with SF-36 scores using Pearson test: -0.72 (p<0.001). When we compared results of modified SODA questionnaire and the score of a question about subjective perception of the disease using Spearman test we obtained similar results: 0.72 (p<0.001). Two means of SODA questionnaire scores, before and after treatment, were compared using Student’s T test, and a significant difference was found, (p<0.001) with a drop mean of 5.70 5.33. Conclusion: Modified SODA questionnaire meets all criteria of validity and it could be used to measure dyspepsia severity and its evolution in a Peruvian population.

Keywords : Dyspepsia; Questionnaire; Validation studies.

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