| Title: | Latent subtypes of manic and/or irritable episode symptoms in two population-based cohorts. |
| Journal: | The British Journal of Psychiatry |
| Published: | 4 Jan 2022 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/35049489/ |
| DOI: | https://doi.org/10.1192/bjp.2021.184 |
| URL: | ~Ehttps://www.cambridge.org/core/services/aop-cambridge-core/content/view/EEFDA72BDAFC45FB6CBD10A67B08F486/S0007125021001847a.pdf/div-class-title-latent-subtypes-of-manic-and-or-irritable-episode-symptoms-in-two-population-based-cohorts-div.pdf~ |
Publication 7215
WARNING: the interactive features of this website use CSS3, which your browser does not support. To use the full features of this website, please update your browser.
Abstract
BACKGROUND: Mood disorders are characterised by pronounced symptom heterogeneity, which presents a substantial challenge both to clinical practice and research. Identification of subgroups of individuals with homogeneous symptom profiles that cut across current diagnostic categories could provide insights in to the transdiagnostic relevance of individual symptoms, which current categorical diagnostic systems cannot impart.AIMS: To identify groups of people with homogeneous clinical characteristics, using symptoms of manic and/or irritable mood, and explore differences between groups in diagnoses, functional outcomes and genetic liability.
METHOD: We used latent class analysis on eight binary self-reported symptoms of manic and irritable mood in the UK Biobank and PROTECT studies, to investigate how individuals formed latent subgroups. We tested associations between the latent classes and diagnoses of psychiatric disorders, sociodemographic characteristics and polygenic risk scores.
RESULTS: Five latent classes were derived in UK Biobank (N = 42 183) and were replicated in the independent PROTECT cohort (N = 4445), including 'minimally affected', 'inactive restless', active restless', 'focused creative' and 'extensively affected' individuals. These classes differed in disorder risk, polygenic risk score and functional outcomes. One class that experienced disruptive episodes of mostly irritable mood largely comprised cases of depression/anxiety, and a class of individuals with increased confidence/creativity reported comparatively lower disruptiveness and functional impairment.
CONCLUSIONS: Findings suggest that data-driven investigations of psychopathological symptoms that include sub-diagnostic threshold conditions can complement research of clinical diagnoses. Improved classification systems of psychopathology could investigate a weighted approach to symptoms, toward a more dimensional classification of mood disorders.
15 Authors
- Ryan Arathimos
- Chiara Fabbri
- Evangelos Vassos
- Katrina A S Davis
- Oliver Pain
- Alexandra Gillett
- Jonathan R I Coleman
- Ken Hanscombe
- Saskia Hagenaars
- Bradley Jermy
- Anne Corbett
- Clive Ballard
- Dag Aarsland
- Byron Creese
- Cathryn M Lewis
Enabling scientific discoveries that improve human health