Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine
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To determine the prevalence, risk factors, and impact on daytime sleepiness and hypertension of periodic leg movements of sleep (PLMS) with associated arousals in patients with obstructive sleep apnea (OSA). ⋯ One in 2 patients investigated for OSA has PLMS. Risk factors for PLMS include preexisting medical conditions-particularly depression, fibromyalgia, and diabetes mellitus-increasing age, predisposing medications, obesity, and OSA. The combination of OSA and PLMS results in no greater subjective daytime sleepiness or prevalence of hypertension than OSA alone.