The Relationship between 25-Hydroxy Vitamin D Serum Level and Memory in Patients with a First Episode of Schizophrenia Spectrum Disorder

We found a positive association between 25-hydroxy vitamin D serum concentration and delayed recall in patients with first-episode schizophrenia, supporting a need for interventional study investigating vitamin D supplementation for the cognition of patients with schizophrenia. A negative association between benzodiazepine intake and memory performance calls for attention to minimalize benzodiazepine use.