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Although sleep diary and actigraphy data are usually collected daily for 1 or 2 weeks, traditional analytical approaches aggregate these data into mean values. Internight variability of sleep often accompanies insomnia. However, few studies have explored the relevance of this ‘construct’ in the context of diagnosis, clinical impact, treatment effects and/or whether having ‘variable sleep’ carries...
The type and severity of daytime symptoms reported by insomnia sufferers may vary markedly. Whether distinctive daytime symptom profiles are related to different insomnia diagnoses has not been studied previously. Using profile analysis via multidimensional scaling, we investigated the concurrent validity of ICSD‐2 insomnia diagnoses by analysing the relationship of prototypical profiles of daytime...
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