Abstract
AIM: to obtain a valid and reliable GERD-QOL questionnaire for Indonesian application.
METHODS: at the initial stage, the GERD-QOL questionnaire was first translated into Indonesian language and the translated questionnaire was subsequently translated back into the original language (back-to-back translation). The results were evaluated by the researcher team and therefore, an Indonesian version of GERD-QOL questionnaire was developed. Ninety-one patients who had been clinically diagnosed with GERD based on the Montreal criteria were interviewed using the Indonesian version of GERD-QOL questionnaire and the SF 36 questionnaire. The validity was evaluated using a method of construct validity and external validity, and reliability can be tested by the method of internal consistency and test retest.
RESULTS: the Indonesian version of GERD-QOL questionnaire had a good internal consistency reliability with a Cronbach Alpha of 0.687-0.842 and a good test retest reliability with an intra-class correlation coefficient of 0.756-0.936; p<0.05). The questionnaire had also been demonstrated to have a good validity with a proven high correlation to each question of SF-36 (p<0.05).
CONCLUSION: the Indonesian version of GERD-QOL questionnaire has been proven valid and reliable to evaluate the quality of life of GERD patients.
| Original language | English |
|---|---|
| Pages (from-to) | 3-9 |
| Number of pages | 7 |
| Journal | Acta medica Indonesiana |
| Volume | 49 |
| Issue number | 1 |
| Publication status | Published - 1 Jan 2017 |
Keywords
- GERD
- GERD-QOL
- quality of life
- reliability
- validity