Poster Topical Area: Nutritional Epidemiology
Location: Hall D
Poster Board Number: 800
OBJECTIVE: Studies on alcohol intake and sleep were limited with small sample sizes and lack of information on individual alcoholic beverage. We thus conducted a large-scale community-based study to systematically examine associations between different amounts and types of alcohol intake and sleep quality.
METHODS: We included 11,905 participants (mean age: 47.7 years) of the Kailuan Study, free of stroke, cancer, Parkinson disease, dementia, and head injury in 2006. We collected information on insomnia, daytime sleepiness, snoring, and sleep duration in 2012. Overall sleep quality was evaluated by summarizing these four sleep parameters, with a score ranged from 0(best) to 8(worst). Amounts and types of alcohol intake were collected with questionnaire in 2006. Participants were categorized into: non-drinkers, light (women:0.1-0.4 servings/d; men:0.1–0.9 servings/d), moderate (women:0.5–1.0 servings/d; men:1–2 servings/d), and heavy drinkers(women:>1 servings/d; men:>2 servings/d). We used linear regression and logistic regression models to examine associations between alcohol intake and sleep quality score and likelihood of having individual sleep disorder, respectively, adjusting for socioeconomic status, lifestyle factors, medication use, hypertension, diabetes, body mass index, and blood lipids and urate.
RESULTS: Compared with non-drinkers, current drinkers had worse overall sleep quality (adjusted mean difference=0.18; 95% confidence interval [CI], 0.14-0.22), especially for liquor drinkers (adjusted mean difference=0.18; 95% CI, 0.14-0.23). A dose-response relation between greater alcohol intake and higher sleep quality score was observed (P-trend<0.001) (Figure). Specifically, heavy drinkers had the worst overall sleep quality (adjusted mean difference=0.25; 95% CI, 0.17-0.32), and higher odds of having shorter (<7 hours) sleep duration (adjusted odds ratio (OR)=1.31; 95% CI, 1.09-1.57), and snoring (adjusted OR=1.38; 95% CI, 1.22-1.56), relative to non-drinkers. We did not find significant associations between alcohol intake and insomnia, daytime sleepiness and prolonged sleep duration.
CONCLUSIONS: Alcohol consumption was associated with worse overall sleep quality and a higher likelihood of having shorter sleep duration and snoring.
The Pennsylvania State University
University Park, Pennsylvania