Poor Self-Rated Sleep Quality and Quantity Associated with Poor Oral Health-Related Quality of Life among Indigenous Australian Adults

Xiangqun Ju (), Joanne Hedges, Sneha Sethi and Lisa M. Jamieson
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Xiangqun Ju: Australian Research Centre of Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia
Joanne Hedges: Australian Research Centre of Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia
Sneha Sethi: Australian Research Centre of Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia
Lisa M. Jamieson: Australian Research Centre of Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia

IJERPH, 2024, vol. 21, issue 4, 1-12

Abstract: Background: Indigenous Australians score worse on both sleep and oral health. This study aimed to evaluate sleep quality and quantity associated with oral health-related quality of life (OHRQoL) among Indigenous Australian adults. Methods: A cross-sectional study involving 728 Indigenous Australian adults aged 18+ years was conducted. Exposure variables were sleep quality and quantity. The primary outcome variable was Oral Health Impact Profile-14 (OHIP14), which has been used to assess OHRQoL. Multivariable log–Poisson regression models were applied to estimate the mean ratios (MRs) for mean OHIP14 scores. Results: The average OHIP14 score was 14.9, and the average amount of sleep was 6.8 h/night. After adjusting for all covariates, self-rated very bad sleep quality was associated with 2.2 times (MR = 2.17, 95% CI: 1.97–2.37) higher OHIP14 scores than those who rated their sleep quality as very good. Participants who self-reported sleeping 7–8 h/night had 0.9 times (MR = 0.89, 95%CI: 0.83–0.95) lower OHIP14 scores than those sleeping more than 8 h. Conclusions: The average number of sleep hours for Indigenous participants were lower than recommended (7–8 h/night). Our findings indicate that poor sleep quality and quantity, and oral health-related behaviours associated with sleep deprivation were positively associated with poor oral health related quality of life among Indigenous Australian adults.

Keywords: sleep quality; sleep quantity; OHRQoL; Indigenous (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2024
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