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Table 1 Demographics of patients and controls

From: Theory of mind and neurocognition in early psychosis: a quasi-experimental study

  Patients Healthy controls Significance test
Males:females 22:1 17:2 χ2(1) = .599
Age (years) 20.91 ± 1.83 (18-25) 20.79 ± 1.81 (17-24) t(40) = .219
Education (years) 11.43 ± 2.02 (8-18) 12.82 ± 1.94 (9-16) t(40) = 2.247*
IQ 96.65 ± 8.41 103.42 ± 9.32 t(40) = 2.472*
Age of illness onset (years) 19.91 ± 1.95 (16-24)  
Duration of illness (weeks) 50.74 ± 29.50 (12-104)  
SAPS Positive Symptoms 1.25 ± .94 (0.00-3.75)  
SANS Negative Symptoms 2.18 ± .72 (0.60-3.80)  
Social Functioning 50.87 ± 12.12 (30-80)  
Quality of Life 58.22 ± 22.78 (20-120)  
  1. Note. Data expressed as means ± SD (range in parentheses). *p < .05. Positive and negative symptoms assessed using the Scales for the Assessment of Positive and Negative Symptoms of Schizophrenia (SAPS and SANS: Andreasen, 1983, 1984). The overall Positive and Negative rating is the average of global ratings on the SAPS and SANS respectively (‘0’ = absent; ‘1’ = questionable; ‘2’ = mild; ‘3’ = moderate; ‘4’ = marked; ‘5’ = severe).