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Article: Neurocognition as a predictor of transition to psychotic disorder and functional outcomes in ultra-high risk participants: Findings from the NEURAPRO randomized clinical trial

TitleNeurocognition as a predictor of transition to psychotic disorder and functional outcomes in ultra-high risk participants: Findings from the NEURAPRO randomized clinical trial
Authors
KeywordsPsychosis
Functioning
Ultra-high risk
Outcome
Neurocognition
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/schres
Citation
Schizophrenia Research, 2019, v. 206, p. 67-74 How to Cite?
AbstractBackground: Neurocognitive impairments experienced by individuals at ultra-high risk (UHR) for psychosis are potential predictors of outcome within this population, however there is inconsistency regarding the specific neurocognitive domains implicated. This study aimed to examine whether baseline neurocognition predicted transition to psychosis, or functional outcomes, at medium-term (mean = 3.4 years) follow-up, while controlling for other clinical/treatment variables associated with transition to psychosis. Method: Analysis of data collected as part of a multi-centre RCT of omega-3 fatty acids and cognitive-behavioural case management (NEURAPRO) for UHR individuals was conducted on the 294 participants (134 males, 160 females) who completed neurocognitive assessment (Brief Assessment of Cognition for Schizophrenia) at baseline. Transition to psychosis was determined using the Comprehensive Assessment of At-Risk Mental States (CAARMS), and functioning was measured with the Global Functioning: Social and Role Scales. Results: Mean baseline z-scores indicated that UHR participants performed a quarter to half a standard deviation below normative means in all domains (range mean z = -0.24 to -0.47), except for executive functioning (mean z = 0.16). After adjusting for covariates, poorer Executive (p = .010) and Motor (p = .030) functions were predictive of transition to psychosis. Processing Speed and Verbal Fluency were significant predictors of role functioning at 12 months (p = .004), and social functioning at medium-term follow-up (p = .015), respectively. Conclusions: Neurocognitive abilities are independent predictors of both transition to psychosis and functional outcomes within the UHR population. Further research is needed to determine the best combination of risk variables in UHR individuals for prediction of psychosis transition, functioning and other psychopathology outcomes. (C) 2018 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/293763
ISSN
2019 Impact Factor: 3.759
2015 SCImago Journal Rankings: 2.304
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBolt, LK-
dc.contributor.authorAmminger, GP-
dc.contributor.authorFarhall, J-
dc.contributor.authorMcGorry, PD-
dc.contributor.authorNelson, B-
dc.contributor.authorMarkulev, C-
dc.contributor.authorYuen, HP-
dc.contributor.authorSchäfer, MR-
dc.contributor.authorMossaheb, N-
dc.contributor.authorSchlögelhofer, M-
dc.contributor.authorSmesny, S-
dc.contributor.authorHickie, IB-
dc.contributor.authorBerger, GE-
dc.contributor.authorChen, EYH-
dc.contributor.authorde Haan, L-
dc.contributor.authorNieman, DH-
dc.contributor.authorNordentoft, M-
dc.contributor.authorRiecher-Rössler, A-
dc.contributor.authorVerma, S-
dc.contributor.authorThompson, A-
dc.contributor.authorYung, AR-
dc.contributor.authorAllott, KA-
dc.date.accessioned2020-11-23T08:21:27Z-
dc.date.available2020-11-23T08:21:27Z-
dc.date.issued2019-
dc.identifier.citationSchizophrenia Research, 2019, v. 206, p. 67-74-
dc.identifier.issn0920-9964-
dc.identifier.urihttp://hdl.handle.net/10722/293763-
dc.description.abstractBackground: Neurocognitive impairments experienced by individuals at ultra-high risk (UHR) for psychosis are potential predictors of outcome within this population, however there is inconsistency regarding the specific neurocognitive domains implicated. This study aimed to examine whether baseline neurocognition predicted transition to psychosis, or functional outcomes, at medium-term (mean = 3.4 years) follow-up, while controlling for other clinical/treatment variables associated with transition to psychosis. Method: Analysis of data collected as part of a multi-centre RCT of omega-3 fatty acids and cognitive-behavioural case management (NEURAPRO) for UHR individuals was conducted on the 294 participants (134 males, 160 females) who completed neurocognitive assessment (Brief Assessment of Cognition for Schizophrenia) at baseline. Transition to psychosis was determined using the Comprehensive Assessment of At-Risk Mental States (CAARMS), and functioning was measured with the Global Functioning: Social and Role Scales. Results: Mean baseline z-scores indicated that UHR participants performed a quarter to half a standard deviation below normative means in all domains (range mean z = -0.24 to -0.47), except for executive functioning (mean z = 0.16). After adjusting for covariates, poorer Executive (p = .010) and Motor (p = .030) functions were predictive of transition to psychosis. Processing Speed and Verbal Fluency were significant predictors of role functioning at 12 months (p = .004), and social functioning at medium-term follow-up (p = .015), respectively. Conclusions: Neurocognitive abilities are independent predictors of both transition to psychosis and functional outcomes within the UHR population. Further research is needed to determine the best combination of risk variables in UHR individuals for prediction of psychosis transition, functioning and other psychopathology outcomes. (C) 2018 Elsevier B.V. All rights reserved.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/schres-
dc.relation.ispartofSchizophrenia Research-
dc.subjectPsychosis-
dc.subjectFunctioning-
dc.subjectUltra-high risk-
dc.subjectOutcome-
dc.subjectNeurocognition-
dc.titleNeurocognition as a predictor of transition to psychotic disorder and functional outcomes in ultra-high risk participants: Findings from the NEURAPRO randomized clinical trial-
dc.typeArticle-
dc.identifier.emailChen, EYH: eyhchen@hku.hk-
dc.identifier.authorityChen, EYH=rp00392-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.schres.2018.12.013-
dc.identifier.pmid30558978-
dc.identifier.hkuros320236-
dc.identifier.volume206-
dc.identifier.spage67-
dc.identifier.epage74-
dc.identifier.isiWOS:000467810100011-
dc.publisher.placeNetherlands-

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