Daily Sleep Duration and Social Recovery in Psychosis: Results from the National EDEN Study

Poster A102, Thursday, October 20, 11:30 am - 1:00 pm, Le Baron

Camice J Revier1, Jan Stochl1, Jo Hodgekins2, Brioney Gee2, David Fowler3, Max Birchwood4, Peter B Jones1, National EDEN Research Group5,6,7,8,9; 1University of Cambridge, 2University of East Anglia, 3University of Sussex, 4University of Warwick, 5University of Bristol, 6University of Birmingham, 7University College London, 8University of Manchester, 9University of Cheshire

Purpose: Sleep quality and disturbances are associated with onset and relapse of psychotic disorders, but their relationship with recovery is less clear. We studied reported sleep duration as part of a wider study to identify tractable factors associated with social recovery. We measured social recovery using the previously validated Time Use Survey (TUS) of hours spent in structured activity. Materials and Methods: A hypotheses-driven, secondary analysis was conducted of data from the National EDEN cohort, 1027 individuals with early psychosis in contact with Early Intervention Services, followed-up over one year. We explored associations between daily sleep duration at follow-up and structured time-use; generalised additive models including predicted confounders were applied. The TUS had been administered by trained interviewers and took approximately 20 minutes. Both structured hours per week and sleeping hours per night were recorded, the latter analysed as five ordered categories. Results: Sleeping 8 to 10 hours per night at follow-up was associated with a reduction in structured hours of 16.5 hours per week (95% CI 7.9-25.1; SE=4.4; p <0.001) compared with sleeping 3 to 6 hours per night. Conclusion: Additional examination is necessary to determine to what extent these finding are the result of assessment bias, confounding, reverse causality or chance. However, the effect of sleep duration and quality on social recovery merits further research, with opportunities to examine interventions specifically targeted at changing these patterns as a potential tractable factor in the elusive area of social recovery in psychosis.

Topic Area: First Episode Psychosis

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