Longitudinal associations between adolescent psychotic experiences and depressive symptoms.

<h4>Background</h4>Psychotic experiences are prevalent in community samples and are highly correlated with depressive symptoms. This study aimed to investigate the longitudinal associations between psychotic experiences and depressive symptoms between adolescence and young adulthood.<...

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Main Authors: Sarah A Sullivan, Nicola Wiles, Daphne Kounali, Glyn Lewis, Jon Heron, Mary Cannon, Liam Mahedy, Peter B Jones, Jan Stochl, Stan Zammit
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0105758&type=printable
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author Sarah A Sullivan
Nicola Wiles
Daphne Kounali
Glyn Lewis
Jon Heron
Mary Cannon
Liam Mahedy
Peter B Jones
Jan Stochl
Stan Zammit
author_facet Sarah A Sullivan
Nicola Wiles
Daphne Kounali
Glyn Lewis
Jon Heron
Mary Cannon
Liam Mahedy
Peter B Jones
Jan Stochl
Stan Zammit
author_sort Sarah A Sullivan
collection DOAJ
description <h4>Background</h4>Psychotic experiences are prevalent in community samples and are highly correlated with depressive symptoms. This study aimed to investigate the longitudinal associations between psychotic experiences and depressive symptoms between adolescence and young adulthood.<h4>Method</h4>Prospective cohort study with a 6 year follow-up in a community sample of 7632 adolescents and young adults. Depressive symptoms were assessed with the Short Moods and Feelings Questionnaire and psychotic experiences with a semi-structured clinical interview at 12 and 18 years. Longitudinal and cross-sectional associations were investigated with regression and structural equation models.<h4>Results</h4>Depressive symptoms and psychotic experiences were associated at each time-point (12 years r = 0.486 [95% CI 0.457, 0.515]; 18 years r = 0.286 [95% CI 0.233, 0.339]) and there were longitudinal within-phenotype associations (depressive symptoms r = 0.252 [95% CI 0.205, 0.299]; psychotic experiences r = 0.662 [95% CI 0.595, 0.729]). There was an across-phenotype association between psychotic experiences at 12 and depressive symptoms at 18 r = 0.139 [95% CI 0.086, 0.192; p<0.001], but no association between depressive symptoms at 12 and psychotic experiences at 18 r = -0.022 [95% CI -0.032, 0.077; p = 0.891].<h4>Conclusions</h4>Longitudinal across-phenotype associations were substantially weaker than cross-sectional associations or within-phenotype longitudinal associations. Whilst psychotic experiences at 12 years were associated with a small increase in depression at 18 years, depression at 12 years was not associated with psychotic experiences at 18 years once across-phenotype cross-sectional and within-phenotype longitudinal associations were accounted for. This suggests that the biological mechanisms underlying depression at this age do not increase subsequent risk of psychotic experiences once they resolve.
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spelling doaj-art-82e739e1f39d4c05ae7c5d4dc1f4989c2025-08-20T02:22:45ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0198e10575810.1371/journal.pone.0105758Longitudinal associations between adolescent psychotic experiences and depressive symptoms.Sarah A SullivanNicola WilesDaphne KounaliGlyn LewisJon HeronMary CannonLiam MahedyPeter B JonesJan StochlStan Zammit<h4>Background</h4>Psychotic experiences are prevalent in community samples and are highly correlated with depressive symptoms. This study aimed to investigate the longitudinal associations between psychotic experiences and depressive symptoms between adolescence and young adulthood.<h4>Method</h4>Prospective cohort study with a 6 year follow-up in a community sample of 7632 adolescents and young adults. Depressive symptoms were assessed with the Short Moods and Feelings Questionnaire and psychotic experiences with a semi-structured clinical interview at 12 and 18 years. Longitudinal and cross-sectional associations were investigated with regression and structural equation models.<h4>Results</h4>Depressive symptoms and psychotic experiences were associated at each time-point (12 years r = 0.486 [95% CI 0.457, 0.515]; 18 years r = 0.286 [95% CI 0.233, 0.339]) and there were longitudinal within-phenotype associations (depressive symptoms r = 0.252 [95% CI 0.205, 0.299]; psychotic experiences r = 0.662 [95% CI 0.595, 0.729]). There was an across-phenotype association between psychotic experiences at 12 and depressive symptoms at 18 r = 0.139 [95% CI 0.086, 0.192; p<0.001], but no association between depressive symptoms at 12 and psychotic experiences at 18 r = -0.022 [95% CI -0.032, 0.077; p = 0.891].<h4>Conclusions</h4>Longitudinal across-phenotype associations were substantially weaker than cross-sectional associations or within-phenotype longitudinal associations. Whilst psychotic experiences at 12 years were associated with a small increase in depression at 18 years, depression at 12 years was not associated with psychotic experiences at 18 years once across-phenotype cross-sectional and within-phenotype longitudinal associations were accounted for. This suggests that the biological mechanisms underlying depression at this age do not increase subsequent risk of psychotic experiences once they resolve.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0105758&type=printable
spellingShingle Sarah A Sullivan
Nicola Wiles
Daphne Kounali
Glyn Lewis
Jon Heron
Mary Cannon
Liam Mahedy
Peter B Jones
Jan Stochl
Stan Zammit
Longitudinal associations between adolescent psychotic experiences and depressive symptoms.
PLoS ONE
title Longitudinal associations between adolescent psychotic experiences and depressive symptoms.
title_full Longitudinal associations between adolescent psychotic experiences and depressive symptoms.
title_fullStr Longitudinal associations between adolescent psychotic experiences and depressive symptoms.
title_full_unstemmed Longitudinal associations between adolescent psychotic experiences and depressive symptoms.
title_short Longitudinal associations between adolescent psychotic experiences and depressive symptoms.
title_sort longitudinal associations between adolescent psychotic experiences and depressive symptoms
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0105758&type=printable
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