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Table 1 Demographics and clinical features of participants

From: Reduced DNA methylation of the oxytocin receptor gene is associated with obsessive-compulsive disorder

  Men   Women  
  OCDa (n = 112) HCa (n = 56) Pb OCDa (n = 39) HCa (n = 52) Pb
Age 21.9 ± 2.2 21.5 ± 3.5 0.385 21.8 ± 2.2 21.1 ± 3.6 0.269
Education, year 12.7 ± 1.7 13.5 ± 1.7 0.006 13.1 ± 1.8 13.6 ± 1.9 0.26
Age of onset 14.3 ± 4.1    14.7 ± 4.0   
Duration of illness, year 7.6 ± 4.5    7.0 ± 3.9   
MADRS 20.6 ± 9.8    19.7 ± 9.7   
Y-BOCS 25.0 ± 6.9    25.9 ± 6.5   
  1. OCD obsessive-compulsive disorder, HC healthy control, MADRS Montgomery-Asberg Depression Rating Scale, Y-BOCS Yale-Brown Obsessive-Compulsive Scale
  2. aMean ± standard deviation
  3. bIndependent samples t test