PTSD-related paradoxical insomnia: an actigraphic study among veterans with chronic PTSD
Keywords:Sleep disturbance, PTSD, Actigraphy
AbstractBACKGROUND: Sleep disturbance is a common self-reported complaint by PTSD patients. How-ever, there are controversies in documenting objective indices of disrupted sleep in these patients. The aim of the present study was to assess sleep disturbances in veterans with chronic PTSD, using both subjective and objective assessments. METHODS: Thirty two PTSD patients with complaints of insomnia were evaluated using the Clini-cian Administrated PTSD Scale version 1 (CAPS) and completed the Pittsburg Sleep Quality In-dex (PSQI) for subjective evaluation of their sleep. For objective evaluation, participants un-derwent two consecutive overnight actigraphic assessments. Total Sleep Time (TST), Sleep Laten-cy (SL), Sleep Efficiency (SE) and Number of Awakening (NWAK) were measured in all partici-pants. RESULTS: Participants underestimated TST (p less than 0.0001), SE (p less than 0.0001) as well as NASO (0.03) in the questionnaire compared to the actigraphic assessment and overestimat-ed SL (p less than 0.0001). CONCLUSIONS: Objective sleep parameters do not adversely affect veterans with chronic PTSD. Self-reported sleep disturbance in these patients is not reliable and objective sleep as-sessments are necessary.
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