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Table 1 Demographic and clinical characteristics of subjects

From: Altered resting-state connectivity in subjects at ultra-high risk for psychosis: an fMRI study

Variables UHR subjects (n = 19) Healthy controls (n = 20) Analysis
  Mean SD Mean SD T/U/X 2 p
Male/Females 11/8 11/9 0.03a 0.86
Age (yrs) 20.8 4.1 21.7 2.1 -0.77b 0.45
Handedness (R/L)e 19/0 20/0   
Parental SES 3.0 1.2 3.2 1.2 165.00c 0.63
Educational years 12.2 2.0 13.9 1.3 84.00c 0.002**
IQf 109.2 17.7 106.4 12.7 176.50c 0.70
GAF 52.3 11.6 89.8 2.0 12.50c < 0.001**
SFSg 100.39 10.21 115.09 6.76 -4.80d < 0.001**
PANSS 57.4 14.6     
BPRS 43.5 8.6     
SAPS 11.6 8.4     
SANS 28.4 16.5     
CAARMSh 46.5 18.8     
  1. aPearson's chi-square test; bWelch's t test; cMann-Whitney U test; dStudent's t test.
  2. eAssessed using Annett hand preference questionnaire [62].
  3. fEstimated by Korean-Wechsler Adult Intelligence Scale-Revised (K-WAIS-R) [63].
  4. gAverage scores of the seven subscales, each of which was standardized and normalized with a mean of 100 and a SD of 15.
  5. hScored by adding the intensity rating scores.
  6. Data were not available for some participants in parental SES (control n = 1) and SFS (control n = 5).
  7. **p < 0.01
  8. UHR: ultra-high risk; SES: Hollingshead socioeconomic status (highest = 1, lowest = 5); IQ: intelligence quotient; GAF: Global Assessment of Functioning [64]; SFS: Social Functioning Scale [65]; PANSS: Positive and Negative Syndrome Scale [66]; BPRS: Brief Psychiatric Rating Scale (modified 24-item version, rating items 1-7) [67]; SAPS: Scale for the Assessment of Positive Symptoms [68]; SANS: Scale for the Assessment of Negative Symptoms [69]; CAARMS: Comprehensive Assessment of At-Risk Mental States.