RT Journal Article T1 Is the Prevalence of the Deficit Syndrome in Schizophrenia Higher than Estimated? Results of a Meta-Analysis. A1 López-Díaz, Álvaro A1 Lara, Ignacio A1 Lahera, Guillermo K1 Deficit Schizophrenia K1 Deficit syndrome K1 Negative symptoms K1 Primary negative symptoms K1 Schizophrenia AB 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. SN 1738-3684 YR 2018 FD 2018-01-16 LK http://hdl.handle.net/10668/12106 UL http://hdl.handle.net/10668/12106 LA en DS RISalud RD Apr 9, 2025