A cross-sectional study using nationally representative datasets from six middle-income countries (China, Ghana, India, Russian Federation, South Africa, and Mexico) shows that older adults with a self-reported sleep duration of six to nine hours per night exhibited significantly higher cognitive scores than individuals with a short nightly sleep duration of less than six hours or a long sleep duration of more than nine hours per night.

A study in the May issue of the journal SLEEP shows that pregnant women with obstructive sleep apnea are five times more likely to die in the hospital than those without the sleep disorder.

A retrospective population cohort study from Taiwan shows that hip fracture incidence was two times higher among first-time zolpidem users than nonusers.

A study in the March issue of the Journal of Clinical Sleep Medicine found that treatment outcomes were improved when patients received care from board certified sleep specialists and accredited sleep centers.

A study in the March issue of SLEEP is the first to identify increased mortality in narcolepsy. Results show that narcolepsy is associated with approximately 1.5-fold excess mortality relative to those without narcolepsy.

A study in the March issue of SLEEP found an association between poor sleep quality and reduced gray matter volume in the brain’s frontal lobe among a sample of Gulf War veterans.

New findings from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) have been compiled and published as the Hispanic Community Health Study Data Book: A Report to the Communities.

A study in the January issue of the Journal of Clinical Sleep Medicine involved 2,793 community-dwelling older men who underwent polysomnography with measurement of limb movements and EKG.

A study in the January issue of SLEEP evaluated the new Paris Arousal Disorders Severity Scale. Results suggest that the PADSS could be a valid and reliable tool for monitoring and measuring the clinical symptoms and severity of parasomnias such as sleepwalking and sleep terrors.