Publications by authors named "S H Booij"

Article Synopsis
  • High disease burden from mood, anxiety, and psychotic disorders can be partly addressed through clinical prediction models, but many lack external validation, affecting their reliability in real-world settings.
  • The study systematically reviewed 28 externally validated prediction models, mainly focused on mood disorders, highlighting the importance of clinical predictors like symptom severity while finding concerns about the methodological quality of some studies.
  • Overall, the research found fair discrimination performance of models, suggesting that more external validation and careful consideration of clinical contexts are needed before implementing these prediction models in practice.
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Background: Motor activity fluctuations in healthy adults exhibit fractal patterns characterized by consistent temporal correlations across wide-ranging time scales. However, these patterns are disrupted by aging and psychiatric conditions. This study aims to investigate how fractal patterns vary across the sleep-wake cycle, differ based on individuals' recency of depression diagnosis, and change before and after a depressive episode.

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Lifestyle-related problems are common in people with mental illness, contributing to a decreased life expectancy and high societal and personal burden. This study aimed to investigate the feasibility, acceptability, and preliminary effectiveness on recovery of a multidomain lifestyle intervention in patients with severe or chronic mental illnesses. Twenty transdiagnostic outpatients were 1:1 randomised in intervention or control.

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Introduction: Psychosis often develops gradually along a continuum of severity. Little is known about the role of protective factors such as positive affect (PA) in the development of psychotic experiences (PEs). This study investigated i) the temporal (between-day) and contemporaneous (within-day) daily associations between PA and PEs in individuals at different early clinical stages for psychosis and ii) whether these associations differed per clinical stage.

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