[1]Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health Center Shanghai Jiao Tong University School of Medicine Shanghai China;
[2]Peking University Institute of Mental Health Sixth Hospital Beijing China;
[3]National Clinical Research Center for Mental Disorders Peking University Sixth Hospital Beijing China;
[4]Key Laboratory of Mental Health Ministry of Health Peking University Beijing China;
[5]Institute of Psychology and Behavioral Science Shanghai Jiao long University Shanghai China;
Meta-analysis; cognitive function; first-episode schizophrenia;