Abstract
BackgroundThis longitudinal study aimed to evaluate the longitudinal validity and reliability of the Oral Health Impact on Daily Living (OHIDL) transition scale and measure the perceived change in oral health-related quality of life (OHRQoL) after dental treatments among older adults.MethodsOHIDL was administered to older adults who sought dental treatments. Participants were asked to assess changes in impact for each OHIDL item retrospectively compared with that before the treatment. The responsiveness, minimal clinically important difference (MCID), internal consistency and test–retest reliability of the OHIDL transition scale were evaluated. Multiple linear regression was employed to predict the change in oral health impacts after dental treatment. Beta coefficients (β) and 95% confidence intervals (CI) were reported.ResultsOne hundred and seventy-six participants were followed-up with upon completing their dental treatments. The follow-up rate was 70.4% (176/250). The OHIDL transition score strongly correlated with the global rating of change (rs = 0.76, P < 0.01). MCID was determined by participants who reported “a little improved” in the perceived oral health impacts, and their mean transition score was 3.3. Cronbach’s alpha of the transition scale was 0.87, and many items had a test–retest correlation of at least 0.60. Patients who perceived more oral health impacts at baseline as measured by the total intensity score (β = 0.32, 95% CI: 0.20, 0.44, P < 0.001) and those who had received endodontic treatment (β = 8.04, 95% CI: 4.36, 11.71, P < 0.001) would have more improvement in perceived oral health impacts.ConclusionsThe OHIDL transition scale has good psychometric properties and is sensitive to change over time. After receiving dental treatment, most of the study’s older adults perceived a lower intensity of OHIDL.Clinical relevanceThe OHIDL transition scale is a valid and reliable instrument to measure the change in OHRQoL after dental treatments.
Highlights
This longitudinal study aimed to evaluate the longitudinal validity and reliability of the Oral Health Impact on Daily Living (OHIDL) transition scale and measure the perceived change in oral health-related quality of life (OHRQoL) after dental treatments among older adults
Clinical relevance: The OHIDL transition scale is a valid and reliable instrument to measure the change in OHRQoL after dental treatments
This study aimed to evaluate the OHIDL transition scale’s validity and reliability among older adults in Hong Kong and measure the change in perceived OHRQoL after receiving dental treatments
Summary
This longitudinal study aimed to evaluate the longitudinal validity and reliability of the Oral Health Impact on Daily Living (OHIDL) transition scale and measure the perceived change in oral health-related quality of life (OHRQoL) after dental treatments among older adults. With the shifting from a medical model to a social model in the health care system, the traditional biomedical endpoints of clinical studies have been extended to include patient-centered measurements, such as quality of life (QoL) [1, 2]. According to Inglehart and Bagramian [3], oral health-related quality of life (OHRQoL) is assessed. The link between clinical variables, functional status, OHRQoL, and overall QoL is illustrated in the theoretical model developed by Sischo and Broder [4]. With the joint use of clinical indicators, OHRQoL measures have been assessed to monitor the side effects of treatments and evaluate interventions’ effectiveness in clinical trials from the patients’ perspective [5]
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