Coffee consumption and risk of hearing impairment in men and women

Background: Hearing loss is the fifth leading cause of disability in the world. Coffee consumption might have a beneficial effect on hearing function because of the antioxidant and anti-inflammatory properties of some of its compounds. However, no previous longitudinal study has assessed the association between coffee consumption and the risk of hearing impairment. Objective: To assess the prospective association between coffee consumption and risk of disabling hearing impairment in middle and older men and women from the UK Biobank study. Methods: Analytical cohort with 36,923 participants (16,142 men and 20,781 women) [mean (SD): 56.6 (7.8) years, 1.6 (1.4) cups/d, and -7.6 (1.3) dB for age, total coffee consumption and speech reception threshold in noise at baseline, respectively]. At baseline, coffee consumption was measured with 3-5 multiple-pass 24-h food records. Hearing function was measured with a digit triplet test, and disabling hearing impairment was defined as a speech reception threshold in noise 1 cup/d of coffee, those who consumed 1, and 2 cups/d had a lower risk of hearing impairment (hazard ratio [95% confidence interval]: 0.72 [0.54-0.97] and 0.72 [0.56-0.92], respectively; P-trend: 0.01). This association was similar for caffeinated and decaffeinated coffee, and for filtered and non-filtered coffee, and was stronger in those with obesity (hazard ratio [95% confidence interval] for consumption of >2 vs. <1 cups/d: 0.39 [0.21-0.74]). No association was found between coffee and hearing function among women. Conclusions: Coffee consumption was associated with lower risk of disabling hearing impairment in men but not in women. The association appeared to be independent of the coffee type and the preparation method. (c) 2020 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.

Automated summary

Coffee consumption was associated with a lower risk of disabling hearing impairment in men, but not in women. The association appeared to be independent of the coffee type and the preparation method.