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Validation of Spanish language dyspepsia questionnaire.

Jonathan Goldman1, Donald F Conrad, Catherine Ley

  • 1Department of Medicine, Stanford University, California, USA.

Digestive Diseases and Sciences
|March 27, 2002
PubMed
Summary
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A new Spanish Language Dyspepsia Questionnaire (SLDQ) was developed and validated. This reliable and reproducible tool effectively measures dyspepsia symptoms in Spanish speakers.

Area of Science:

  • Gastroenterology
  • Clinical Epidemiology
  • Health Outcomes Research

Background:

  • The absence of a validated, Spanish-language dyspepsia questionnaire limits clinical assessment and research.
  • Existing tools do not adequately capture the nuances of dyspepsia symptoms in Spanish-speaking populations.

Purpose of the Study:

  • To develop and validate the Spanish Language Dyspepsia Questionnaire (SLDQ).
  • To provide a reliable, multidimensional instrument for assessing dyspepsia in Spanish speakers.

Main Methods:

  • Development of the SLDQ based on Rome criteria and common symptoms.
  • Validation study involving 63 self-reported normal and dyspeptic volunteers in Mexico.
  • Assessment of internal reliability (Cronbach's alpha), intra- and interrater reliability (test-retest), and construct validity (correlation with SF-36, comparison between groups).

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Main Results:

  • The SLDQ demonstrated high internal reliability (Cronbach's alpha = 0.93).
  • Excellent intra- and interrater reliability was confirmed (intraclass correlation coefficient = 0.96).
  • The SLDQ showed appropriate correlations with the SF-36 and effectively distinguished between normal and dyspeptic individuals (P < 0.001).

Conclusions:

  • The Spanish Language Dyspepsia Questionnaire (SLDQ) is a valid, reproducible, and multidimensional instrument.
  • The SLDQ addresses a critical unmet need for assessing dyspepsia in the Spanish-speaking population.
  • Findings support the use of the SLDQ in clinical practice and research for improved patient outcomes.