Translation and validation of the adapted self reported oral health questionnaire (SROH) for periodontitis screening among Malaysian adults / Johanan Lawrence

Johanan , Lawrence (2024) Translation and validation of the adapted self reported oral health questionnaire (SROH) for periodontitis screening among Malaysian adults / Johanan Lawrence. Masters thesis, Universiti Malaya.

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Abstract

Background: Periodontitis is a globally prevalent disease, yet an instrument for large-scale screening remains elusive. Self-reported questionnaires hold promise as rapid, accessible, and non-invasive screening tools for disease surveillance. Aim: To translate the adapted Self-reported Oral Health Questionnaire (SROH) and to evaluate its validity and reliability as a screening tool for periodontitis among Malaysian adults. Methods: The study was conducted in two parts. First, the adapted SROH was translated into Malay by independent experts using forward-backward translation process. Then, the validity and reliability of the translated adapted SROH (M-SROH) were evaluated. Content validity was established through review by six experts, while the face validity was assessed by self-administering the questionnaire to 10 participants from the target population. Concurrent validity and internal consistency were tested in a pilot study of 90 participants from the Primary Care Unit at the Faculty of Dentistry, Universiti Malaya. The concurrent validity of the M-SROH, including sensitivity, specificity, positive predictive value, negative predictive values, and the area under the receiver operating characteristics curve (AUROCC), was determined against a full mouth periodontal examination. The internal consistency of the questionnaire was assessed using Cronbach’s alpha value. Results: Both content and face validation were deemed acceptable, with item-level and scale-level indices exceeding the cut-off of 0.83. The M-SROH demonstrated excellent concurrent validity, with a sensitivity of 100%, specificity of 85.7%, positive predictive value of 91.7%, negative predictive value of 100%, and an AUROCC of 0.994. The internal consistency was moderate with Cronbach’s alpha value of 0.64. Conclusion: M-SROH demonstrates promising potential as a non-invasive and cost-effective screening tool for periodontitis among Malaysian adults.

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