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    Psychotic experiences and negative symptoms from adolescence to emerging adulthood: developmental trajectories and associations with polygenic scores and childhood characteristics

    Havers, Laura and von Stumm, Sophie and Cardno, A.G. and Freeman, D. and Ronald, Angelica (2022) Psychotic experiences and negative symptoms from adolescence to emerging adulthood: developmental trajectories and associations with polygenic scores and childhood characteristics. Psychological Medicine , ISSN 0033-2917.

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    Abstract

    Background. Psychotic experiences and negative symptoms (PENS) are common in nonclinical populations. PENS are associated with adverse outcomes, particularly when they persist. Little is known about the trajectories of PENS dimensions in young people, nor about the precursory factors associated with these trajectories. Methods. We conducted growth mixture modelling of paranoia, hallucinations, and negative symptoms across ages 16, 17, and 22 in a community sample (N = 12 049–12 652). We then described the emergent trajectory classes through their associations with genome-wide polygenic scores (GPS) for psychiatric and educational phenotypes, and earlier childhood characteristics. Results. Three trajectory classes emerged for paranoia, two for hallucinations, and two for negative symptoms. Across PENS, GPS for clinical help-seeking, major depressive disorder, and attention deficit hyperactivity disorder were associated with increased odds of being in the most elevated trajectory class (OR 1.07–1.23). Lower education GPS was associated with the most elevated trajectory class for hallucinations and negative symptoms (OR 0.77– 0.91). Conversely for paranoia, higher education GPS was associated with the most elevated trajectory class (OR 1.25). Trajectory class associations were not significant for schizophrenia, obsessive-compulsive disorder, bipolar disorder, or anorexia GPS. Emotional/behaviour problems and life events in childhood were associated with increased odds of being in the most elevated trajectory class across PENS. Conclusions. Our results suggest latent heterogeneity in the development of paranoia, hallucinations, and negative symptoms in young people that is associated with specific polygenic scores and childhood characteristics.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Adolescence, community, developmental trajectories, emerging adulthood, growth mixture modelling, negative symptoms, polygenic scores, psychotic experiences
    School: School of Science > Psychological Sciences
    Depositing User: Angelica Ronald
    Date Deposited: 09 Nov 2022 13:39
    Last Modified: 10 Nov 2022 20:32
    URI: https://eprints.bbk.ac.uk/id/eprint/49711

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