Table 1 Demographics and clinical measures.

From: Cortical myelin mapping in antipsychotic medication-naïve, first-episode psychosis patients

 

Healthy controls (n = 108)

First-episode psychosis (n = 105)

F/t/χ2

p value

Demographics

 Gender (%male)

54.60

61.90

1.15

0.28

 Age

23.88 (5.27)

23.39 (5.60)

0.43

0.51

 Socioeconomic statusa

4.42 (3.92)

5.56 (4.78)

3.62

0.06

 Duration of untreated psychosis (months)

 

23.52 (40.48)

  

Diagnosis

 Schizophrenia

 

52

  

 Schizoaffective disorder

 

18

  

 Schizophreniform disorder

 

6

  

 Psychosis NOS

 

17

  

 Brief psychotic disorder

 

5

  

Clinical measures

BPRSb

 Total score

 

47.73 (11.50)

  

 Positive symptom score

 

14.96 (3.95)

  

 Negative symptom score

 

5.38 (2.95)

  

RBANSc

 Total score

93.45 (10.22)

76.00 (16.01)

81.83

< 0.001

  1. All numbers reported indicate mean (standard deviation) unless noted otherwise.
  2. aRanks determined from Diagnostic Interview for Genetic Studies (1–18 scale); higher rank (lower numerical value) corresponds to higher socioeconomic status.
  3. bBrief Psychiatric Rating Scale (1–7 scale) positive score contains the items conceptual disorganization, hallucinatory behavior, unusual thought content and suspiciousness; negative score contains the items (emotional withdrawal, motor retardation, and blunted affect).
  4. cRepeatable Battery for the Assessment of Neuropsychological Status.
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