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29-07-2019 | Uitgave 12/2019

Quality of Life Research 12/2019

Structural equation modeling to detect predictors of oral health-related quality of life among Japanese university students: a prospective cohort study

Tijdschrift:
Quality of Life Research > Uitgave 12/2019
Auteurs:
Hikari Saho, Daisuke Ekuni, Kota Kataoka, Ayano Taniguchi-Tabata, Naoki Toyama, Yoshio Sugiura, Md Monirul Islam, Yoshiaki Iwasaki, Manabu Morita
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Abstract

Purpose

This prospective cohort study of Japanese university students aimed to identify factors that might affect oral health-related quality of life (OHRQoL) and longitudinal relationships over a period of 3 years.

Methods

Students (n = 487) provided complete data before entering and 3 years later (before university graduation) participated in the present study. Decayed, missing, and filled teeth (DMFT) scores, community periodontal index, ratios (%) of teeth with bleeding on probing, and malocclusion were determined during oral examinations. The questionnaire addressed age, sex, self-rated oral health, oral health behavior, subjective oral symptoms, and OHRQoL determined using the oral health impact profile (OHIP)-14. Associations were analyzed using structural equation modeling (SEM).

Results

The OHRQoL significantly worsened according to OHIP-14 total score (p = 0.001). The final model in the symptoms of SEM analysis showed that OHRQoL at follow-up positively correlated with OHRQoL at baseline. Self-rated oral health was directly associated with the OHRQoL at baseline (p < 0.05).

Conclusions

This study determined that OHRQoL at baseline was a direct predictor, and that self-rated oral health were indirect predictors of OHRQoL at follow-up among Japanese university students.

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