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Is the Prevalence of the Deficit Syndrome in Schizophrenia Higher than Estimated? Results of a Meta-Analysis.
López-Díaz, Álvaro; Lara, Ignacio; Lahera, Guillermo.
Affiliation
  • López-Díaz Á; Mental Health Clinical Management Unit Virgen Macarena University Hospital, Seville, Spain.
  • Lara I; Mental Health Clinical Management Unit Virgen Macarena University Hospital, Seville, Spain.
  • Lahera G; Department of Medicine and Medical Specialties University of Alcalá, IryCIS, CIBERSAM, Madrid, Spain.
Psychiatry Investig ; 15(1): 94-98, 2018 Jan.
Article in En | MEDLINE | ID: mdl-29422932
ABSTRACT
The primary and enduring presence of negative symptoms observed in a relatively homogeneous subgroup of patients with schizophrenia led to the concept of deficit syndrome (DS). Until date, it is considered that 20-25% of schizophrenia cohorts have DS. The aim of this meta-analysis was to determine the current prevalence of DS, including international and most recent studies. Thirteen observational studies met the inclusion criteria, comprising 2092 patients from eight countries. Pooled proportion of the DS subgroup was 32.64%, higher than previously reported. Based on our outcomes, up to one-third of patients with schizophrenia might have idiopathic and stable negative symptoms. This significant proportion of patients should be well represented in clinical trial's samples.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Observational_studies / Prevalence_studies / Risk_factors_studies / Systematic_reviews Language: En Journal: Psychiatry Investig Year: 2018 Type: Article Affiliation country: Spain

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Observational_studies / Prevalence_studies / Risk_factors_studies / Systematic_reviews Language: En Journal: Psychiatry Investig Year: 2018 Type: Article Affiliation country: Spain