Description of the studies comparing blood levels of S100B in schizophrenia patients and controls, included in the meta-analysis.

BPRS: Brief Psychiatric Rating Scale; NSRS Negative Symptoms Rating Scale; PANSS Positive and Negative Scale for Schizophrenia; SAPS: Scale for the Assessment of Positive Symptoms; SANS: Scale for the Assessment of Negative Symptoms; DSM-IV: Diagnostic and Statistical Manual of Mental Disorders, 4th edition; DSM-IV-TR: Diagnostic and Statistical Manual of Mental Disorders, 4th edition, Revised; CDSS: Calgary Depression Scale for Schizophrenia; HAM-D Hamilton Rating Scale for Depression; §number of controls was not written in the article but it was stated that controls were age and sex matched, so we assumed that case and controls had been recruited in the same number.Description of the studies comparing blood levels of S100B in schizophrenia patients and controls, included in the meta-analysis.