Medicina · 2008 · 29 citations · 17 references
Poor perceived health, frequent stress events, regular nighttime awakenings, and sleep latency period longer than 15 min were indicated as significant predictors of poor sleep. Poor sleep worsened health-related quality of life in all domains of SF-36.
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Quality of life in people with insomnia.
Gary Zammit, Julie Weiner, Nicola Damato et al. · PubMed · 1999 · 459 citations