Clinical significance of night-to-night sleep variability in insomnia.

Sleep Medicine
Sooyeon SuhRachel Manber

Abstract

To evaluate the clinical relevance of night-to-night variability of sleep schedules and insomnia symptoms. The sample consisted of 455 patients (193 men, mean age=48) seeking treatment for insomnia in a sleep medicine clinic. All participants received group cognitive behavioral therapy for insomnia (CBTI). Variability in sleep parameters was assessed using sleep diary data. Two composite scores were computed, a behavioral schedule composite score (BCS) and insomnia symptom composite score (ICS). The Insomnia Severity Index, the Beck Depression Inventory, and the Morningness-Eveningness Composite Scale were administered at baseline and post-treatment. Results revealed that greater BCS scores were significantly associated with younger age, eveningness chronotype, and greater depression severity (p<0.001). Both depression severity and eveningness chronotype independently predicted variability in sleep schedules (p<0.001). Finally, CBTI resulted in reduced sleep variability for all sleep diary variables except bedtime. Post-treatment symptom reductions in depression severity were greater among those with high versus low baseline BCS scores (p<0.001). Results suggest that variability in sleep schedules predict reduction in insomnia ...Continue Reading

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Citations

Sep 15, 2012·Behaviour Research and Therapy·Jason C OngRachel Manber
Jan 30, 2015·Journal of Traumatic Stress·Laura D StrausSonya B Norman
Mar 24, 2016·Neurotherapeutics : the Journal of the American Society for Experimental NeuroTherapeutics·Emerson M WickwireChristopher J Lettieri
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Jul 18, 2016·Comprehensive Psychiatry·Tommy H NgMan-Sum Chan
Mar 8, 2017·Chronobiology International·Ilona MerikantoTimo Partonen
Sep 13, 2017·International Journal of Obesity : Journal of the International Association for the Study of Obesity·X XuJ C Lovejoy
Apr 21, 2019·British Journal of Health Psychology·Samantha A MiadichKathryn Lemery-Chalfant
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Dec 10, 2019·The Quarterly Journal of Experimental Psychology : QJEP·Nicola L BarclayAndriy Myachykov
Oct 25, 2017·Chronobiology International·Joshua TutekKenneth L Lichstein
Jul 30, 2020·Sleep Disorders·Mohammed M AlshehriCatherine F Siengsukon
May 10, 2020·International Journal of Behavioral Medicine·Laura M NicholsonAmy M Bohnert
Jan 22, 2021·Journal of Biological Rhythms·Luis MascaroSean P A Drummond
May 28, 2021·Chronobiology International·Chloe WillsMichael A Grandner
Jul 19, 2021·Sleep Medicine·Joseph M DzierzewskiSahar M Sabet

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