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Acta Psychiatr Scand. 2012 Jul;126(1):21-30. doi: 10.1111/j.1600-0447.2012.01839.x. Epub 2012 Feb 15.

Detection of people at risk of developing a first psychosis: comparison of two recruitment strategies.

Author information

1
Department of Clinical Psychology, VU University Amsterdam, the Netherlands. judithrietdijk@gmail.com

Abstract

OBJECTIVE:

Better recruitment strategies are needed to improve the identification of people at ultra-high risk of developing psychosis. This study explores the effectiveness of two recruitment strategies: a screening method in a consecutive help-seeking population entering secondary mental health services for non-psychotic problems vs. a population referred to the diagnostic center of an early-psychosis clinic.

METHOD:

From February 2008 to February 2010, all general practitioner and self-referrals (aged 18-35 years) to the secondary mental healthcare service in The Hague and Zoetermeer were screened with the Prodromal Questionnaire; patients who scored above the cutoff of 18 and had a decline in social functioning were assessed using the Comprehensive Assessment of At-Risk Mental States (CAARMS). All referrals (aged 14-35 years) to the diagnostic center in Amsterdam were also assessed with the CAARMS.

RESULTS:

The screening detected a three-fold higher prevalence of at-risk mental states: these subjects were older and more often female. manova showed significantly higher scores for the screened population on depression, social anxiety, distress with positive symptoms, and a higher rate of transition to psychosis within 12 months.

CONCLUSION:

The screening method detects more patients with at-risk mental states than the referral method. The latter method is biased to young male patients in an earlier prodromal stage and a lower transition rate.

[Indexed for MEDLINE]

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