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Table 1 Demographic and clinical data of the healthy controls and the FES participants  in our sample

From: Machine learning classification of first-episode schizophrenia spectrum disorders and controls using whole brain white matter fractional anisotropy

  Controls (n = 77) FES participants (n = 77) Note
Sex – female N (%) 34 (44%) 34 (44%) NS
Age, mean (S.D.) 28.32 (7.02) 28.51 (7.03) t = 0.16; p = 0.87
Diagnosis (Schizophrenia/Acute polymorphic psychotic disorder) (%) n/a 46 (59.7%) / 31 (40.3%) n/a
Median duration of illness, months (SD) n/a 3 (7.1)a n/a
Drug dose upon MRI – median chlorpromazine equivalent (SD) n/a 337 (234.8)a n/a
PANSS positive mean (SD) n/a 13.9 (4.9) n/a
PANSS negative mean (SD) n/a 15.7 (6.1) n/a
PANSS general mean (SD) n/a 32.8 (8.5) n/a
PANSS total mean (SD) n/a 62.4 (16.7) n/a
  1. S.D. Standard Deviation, MRI Magnetic Resonance Imaging, PANSS Positive and Negative Syndrome Scale
  2. aData from 1 patient missing