High-school seniors with excessive daytime sleepiness have an increased risk of depression

High school seniors were three times more likely to have strong depression symptoms (odds ratio = 3.04) if they had excessive daytime sleepiness. Fifty-two percent of participants had excessive daytime sleepiness, 30 percent had strong depression symptoms and 32 percent had some symptoms of depression. Students reported a mean total sleep time on school nights of only 6.1 hours. The study involved 262 high-school seniors.

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