Objective: The duration and quality of sleep have been associated with multiple health conditions in adults. However, whether sleep duration and quality are associated with hearing loss (HL) is uncertain. The present study investigates the prospective association between duration and quality of sleep and HL.
Design: This longitudinal analysis included 231,650 participants aged 38 to 72 years from the UK Biobank cohort, established in 2006-2010 in the United Kingdom. Duration and sleep complaints (snoring at night, daytime sleepiness, sleeplessness, difficulty getting up in the morning, and eveningness preference) were self-reported. HL was self-reported at baseline and during the follow-up.
Results: Over a median follow-up of 4.19 (SD: 2.15) years, 6436 participants reported incident HL. In fully adjusted models, in comparison with sleeping between 7 and 8 hours a day, the adjusted hazard ratio (HR) (95% CI) associated with sleeping <7 hours a day was 1.01 (0.95 to 1.07), and for sleeping >8 hours a day was 0.98 (0.88 to 1.08). After adjustment for potential confounders, the HRs (95% confidence interval) of HL associated with having 1, 2, 3, and 4 to 5 vs. 0 sleep complaints were: 1.15 (1.05 to 1.27), 1.16 (1.05 to 1.28), 1.32 (1.19 to 1.47), and 1.49 (1.31 to 1.69), respectively; p for trend: <0.001. An increase in the number of sleep complaints was associated with higher risk of HL among participants with non-optimal sleep duration than among participants with optimal sleep duration.
Conclusion: In this large population-based study, poor sleep quality was associated with an increased risk of HL; however, sleep duration was not associated with risk.
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