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TL;DR
This study developed and validated a Sinhalese version of the ESRD-Adherence Questionnaire (SINESRD-AQ) for haemodialysis patients in Sri Lanka. The questionnaire demonstrated good content validity and acceptable test-retest reliability.
PLOS ONE · 8 authors, 6 centres
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This study developed and validated a Sinhalese version of the ESRD-Adherence Questionnaire (SINESRD-AQ) for haemodialysis patients in Sri Lanka. The questionnaire demonstrated good content validity and acceptable test-retest reliability.
Cultural adaptation involved translation, expert committee review, and pretesting. Test-retest reliability was measured over two timepoints. Results showed excellent content validity with I-CVI ranging from 0.83 to 1.0. CFA indicated acceptable model fit for a five-item two-factor model for direct adherence and an eight-item two-factor model for attitude/perception, though RMSEA and chi-square values were unsatisfactory due to small degrees of freedom. Good test-retest reliability was confirmed with an ICC of 0.837 for direct adherence and 0.752 for attitude/perception. Limitations include the small sample size and single-center design.