Bivariate Analysis of a School-based Sense of Coherence Intervention on Oral Health-related Quality of Life of Adolescents in Malaysia
DOI:
https://doi.org/10.24191/cos.v13i2.10179Keywords:
adolescents, oral health-related quality of life, SOC-based intervention, sense of coherence, oral health behaviourAbstract
Objectives: This study aimed to investigate the effect of a school-based SOC intervention on adolescents’ oral health-related quality of life (OHRQoL). Materials and Methods: A quasi-experimental study was conducted among 442 secondary school students aged 14 years from eight schools in Hulu Langat, Selangor, who were assigned to intervention and control groups. Data were collected at baseline and three months post-intervention using validated instruments for SOC (SOC-13) and OHRQoL (CPQ 11-14). Bivariate analyses, including paired and independent t-tests, were performed to assess within-group and between-group differences. Results: Changes in SOC scores were not statistically significant in either group over the study period. However, the intervention group demonstrated significant improvements in OHRQoL domains, particularly functional limitation (p<0.01), emotional wellbeing (p<0.01), and social wellbeing (p<0.01), with a greater magnitude of change compared with the control group. Conclusions: The SOC-based intervention demonstrated early improvement in adolescents’ OHRQoL despite minimal short-term changes in SOC. These findings suggest that psychosocial-based oral health interventions may yield measurable quality-of-life benefits before detectable changes in underlying psychological constructs. A longer intervention period is likely required to strengthen SOC and sustain behavioural outcomes.
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