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Validation of Spanish Language Dyspepsia Questionnaire

Validation of Spanish Language Dyspepsia Questionnaire DIGESTIVE DISEASES AND SCIENCES Goldman, J., Conrad, D. F., Ley, C., Halperin, D., Sanchez, M. D., Villacorta, R., Parsonnet, J. 2002; 47 (3): 624-640

Abstract

No dyspepsia-specific questionnaire currently exists in Spanish. The Spanish Language Dyspepsia Questionnaire (SLDQ) was developed based on Rome dyspepsia criteria, other questionnaires, and common symptoms. Self-reported normal and dyspeptic volunteers (N = 63) in Chiapas, Mexico, participated in a validation study. We assessed intra- and interrater reliability by test-retest studies and established validity by both correlation to the Short Form-36 (SF-36) and comparison of scores between normals and dyspeptics. The total SLDQ score showed a wide distribution (range 0-78, mean 23.7 +/- 21.9). Internal reliability of the SLDQ was high (Cronbach's a = 0.93). Intra- and interrater reliability were excellent (scores from the first and second interviews not statistically different; P = 0.94; intraclass correlation coefficient = 0.96). SLDQ scales correlated appropriately with the SF-36. The SLDQ distinguished self-classified normals from dyspeptics (P < 0.001). The SLDQ fills the unmet need for a valid, reproducible, and multidimensional Spanish-language instrument to measure dyspepsia. Additionally, we have made suggestions for the development of symptom-quantifying questionnaires.

View details for Web of Science ID 000174401000024

View details for PubMedID 11913412