Evidence map›Paper›PMID 25109600›Full record

ArticleEuropean child & adolescent psychiatry2015

Predictors of schizophrenia spectrum disorders in early-onset first episodes of psychosis: a support vector machine model.

Laura Pina-Camacho, Juan Garcia-Prieto, Mara Parellada, Josefina Castro-Fornieles, Ana M Gonzalez-Pinto, Igor Bombin, Montserrat Graell, Beatriz Paya, Marta Rapado-Castro, Joost Janssen and 4 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in European child & adolescent psychiatry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 4 pooled it
–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

27 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Observational
  6. Article
  7. Article
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  12. Schizophrenia: A Survey of Artificial Intelligence Techniques Applied to Detection and Classification.International journal of environmental research and public health · 2021
    Review
  13. Article
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  15. Diagnosing schizophrenia with network analysis and a machine learning method.International journal of methods in psychiatric research · 2020
    Article
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  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Laura Pina-CamachoChild and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón. School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Ibiza 43, 28009, Madrid, Spain, lpina.iisgm@gmail.com.
Juan Garcia-Prieto
Mara Parellada
Josefina Castro-Fornieles
Ana M Gonzalez-Pinto
Igor Bombin
Montserrat Graell
Beatriz Paya
Marta Rapado-Castro
Joost Janssen
Inmaculada Baeza
Francisco Del Pozo
Manuel Desco
Celso Arango

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Identifying early-onset schizophrenia spectrum disorders (SSD) at a very early stage remains challenging. To assess the diagnostic predictive value of multiple types of data at the emergence of early-onset first-episode psychosis (FEP), various support vector machine (SVM) classifiers were developed. The data were from a 2-year, prospective, longitudinal study of 81 patients (age 9-17 years) with early-onset FEP and a stable diagnosis during follow-up and 42 age- and sex-matched healthy controls (HC). The input was different combinations of baseline clinical, neuropsychological, magnetic resonance imaging brain volumetric and biochemical data, and the output was the diagnosis at follow-up (SSD vs. non-SSD, SSD vs. HC, and non-SSD vs. HC). Enhanced recursive feature elimination was performed for the SSD vs. non-SSD classifier to select and rank the input variables with the highest predictive value for a diagnostic outcome of SSD. After validation with a test set and considering all baseline variables together, the SSD vs. non-SSD, SSD vs. HC and non-SSD vs. HC classifiers achieved an accuracy of 0.81, 0.99 and 0.99, respectively. Regarding the SSD vs. non-SSD classifier, a combination of baseline clinical variables (severity of negative, disorganized symptoms and hallucinations or poor insight) and neuropsychological variables (impaired attention, motor coordination, and global cognition) showed the highest predictive value for a diagnostic outcome of SSD. Neuroimaging and biochemical variables at baseline did not add to the predictive value. Thus, comprehensive clinical/cognitive assessment remains the most reliable approach for differential diagnosis during early-onset FEP. SVMs may constitute promising multivariate tools in the search for predictors of diagnostic outcome in FEP.

Indexed as

Support Vector MachineAdolescentBrainChildCognitionCognition DisordersFemaleHallucinationsHumansLongitudinal StudiesMagnetic Resonance ImagingMaleMultivariate AnalysisNeuropsychological TestsPredictive Value of TestsPrognosis

Identifiers

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.