Validity and Reliability Test of Rome IV Functional Dyspepsia Diagnostic Questionnaire (R4-FDDQ) on Indonesian Population

Introduction: Currently there has not been a specific instrument to assess the presence of functional dyspepsia, which is specially designed for the Indonesian population. The main objective was to determine the validity and reliability of the Indonesian version of the Rome IV Functional Dyspepsia (FD) Questionnaire Criteria. Methods: A total of 80 participants (age ≥21 years) with a complaint of dyspepsia were recruited. The Kruskal-Wallis test is used to analyze the difference between demographic data and the type of FD. Pearson’s product-moment correlation and Cronbach’s alpha tests were used to assess the validity and reliability. Results: The participants were mostly dominated by females (66.75 %), with an age average of 43.26±12.692, obese (41.25 %), and Javanese (92.50 %). Most participants are classified as not having functional dyspepsia (77.50 %). Based on the questionnaire, most participants that fulfill the criteria for functional dyspepsia sub-type are classified into postprandial distress syndrome (8.8 %). There were no significant differences between gender, age, BMI, and ethnicity with the type of FD, with each of them indicating p >0.01. The validity test was confirmed valid with the r-value greater than the r-table (r >0.26, p <0.01). The translated questionnaire also confirmed an acceptable reliability level (α = 0.79). Conclusion: The Indonesian version of the Rome IV Functional Dyspepsia Questionnaire Criteria was valid and reliable and can be used as a screening tool in diagnosing functional dyspepsia in the Indonesian population.