Predicting the development of schizophrenia in high-risk populations: Systematic review of the predictive validity of prodromal criteria

Author:

Chuma Jefter,Mahadun Prem

Abstract

BackgroundThere is a great deal of debate on the usefulness and accuracy of prodromal criteria in predicting schizophrenia. The risk of treating people who screen false positive with medication is considerable. Yet intervening during the prodromal stage of illness may reduce the burden caused by schizophrenia.AimsTo draw together the evidence base for the predictive validity of prodromal criteria in identifying individuals at high risk of developing schizophrenia.MethodWe conducted a systematic review of prospective studies investigating the predictive validity of prodromal criteria in schizophrenia.ResultsOur study found two main criteria, ultra-high-risk criteria and basic-symptoms criteria, used in studies investigating the predictive validity of prodromal symptoms. The sensitivity and specificity of ultra-high-risk criteria was 0.81 (95% CI 0.76–0.85) and 0.67 (95% CI 0.64–0.70) respectively and for basic-symptoms criteria sensitivity and specificity was 0.97 (95% CI 0.91–1.00) and 0.59 (95% CI 0.48–0.70) respectively.ConclusionsBoth ultra-high-risk criteria and basic-symptoms criteria are useful in predicting the development of schizophrenia among high-risk populations.

Publisher

Royal College of Psychiatrists

Subject

Psychiatry and Mental health

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