Evidence map›Paper›PMID 40973183›Full record

ArticleSchizophrenia bulletin2026

The Mini-CAARMS: Development and Validation of a Short Version of the Comprehensive Assessment of AT Risk Mental States to Facilitate Preventive Psychiatry.

Alberto Stefana, Dominic Oliver, Andrés Estradé, Matilda Azis, Stefano Damiani, Laura Fusar-Poli, Natascia Brondino, Umberto Provenzani, Ilaria Bonoldi, Peter J Uhlhaas and 1 more

Erratum issuedAbstract readValidation Study
In one paragraph

Article in Schizophrenia bulletin, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Real-world comprehensive care of people living with schizophrenia: recommendations across different settings and clinical stages.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Alberto StefanaDepartment of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.ORCID 0000-0002-4807-7184
Dominic OliverDepartment of Psychiatry, University of Oxford, Oxford, UK.ORCID 0000-0002-8920-3407
Andrés EstradéEarly Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Department of Psychosis, King's College London, London, UK.ORCID 0000-0001-6871-5932
Matilda AzisEarly Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Department of Psychosis, King's College London, London, UK.ORCID 0000-0001-8164-0357
Stefano DamianiDepartment of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.ORCID 0000-0002-5235-0788
Laura Fusar-PoliDepartment of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Natascia BrondinoDepartment of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Umberto ProvenzaniDepartment of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Ilaria BonoldiDepartment of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Peter J UhlhaasDepartment of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany.ORCID 0000-0002-0892-2224
Paolo Fusar-PoliEarly Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Department of Psychosis, King's College London, London, UK.

Funding

Wellcome Trust 215793/Z/19/Z
6 · The paper itself

Abstract

background and hypothesisAccurate detection of individuals at risk for psychosis with established psychometric instruments such as the Comprehensive Assessment of At-Risk Mental States (CAARMS/2006) is crucial to implement effective preventive strategies. However, the CAARMS/2006's scalability is limited by its lengthy administration. This study developed and validated a shorter CAARMS/2006 version: the mini-CAARMS. STUDY

designA total of 490 participants (mean age 23.8 ± 5 years) underwent the full CAARMS/2006 interview (60 items, all individually scored). The development and validation of the mini-CAARMS employed advanced statistical methods: regularized logistic regression with a LASSO penalty within a nested cross-validation framework to retain core items; Cohen's κ, Harrell's C index, sensitivity, specificity, balanced accuracy, positive (PPV) and negative (NPV) predictive values to assess performance; Monte Carlo simulations to assess the 2-year prognostic accuracy for predicting psychosis onset. A sensitivity analysis developed and validated an ultra-mini-CAARMS. STUDY

resultsThe mini-CAARMS retained only 23 items and demonstrated excellent accuracy compared to the full version: Cohen's κ 0.90; Harrell's C index 0.93, sensitivity 95.6%, specificity 100%, balanced accuracy 97.8%, PPV 100%, and NPV 86.3%. The prognostic sensitivity and specificity of the mini-CAARMS were 82.2% and 55.1%, respectively. Sensitivity analyses further developed and validated an ultra-mini-CAARMS (based on 12 items only), which achieved comparable performance, with κ 0.90, C index 0.91, sensitivity 94.4%, balanced accuracy 97.2%, PPV 100%, NPV 82.2%, and prognostic sensitivity and specificity 81.2% and 55.1%, respectively.

conclusionsThe mini-CAARMS maintains high accuracy while substantially reducing administration time, and it could facilitate scalability of preventive psychiatry in low-resource settings.

Indexed as

Psychiatric Status Rating ScalesPsychometricsPsychotic DisordersSchizophreniaAdultFemaleHumansMaleReproducibility of ResultsSensitivity and SpecificityYoung AdultARMSCAARMSCHRpreventionpsychometric assessmentpsychosis riskschizophreniasemistructured interview

Identifiers

PMID40973183
PMCPMC7618934

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.