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Table 2 Participant demographics

From: Positive intervention for depression and teacher–student relationship in Iranian high school girl students with moderate/mild depression: a pilot randomized controlled trial

  PI group (n = 24) Control group (n = 25) p
M ± SD M ± SD  
Age, years 17.15 ± 3.28 16.84 ± 3.17 0.595
Grade    0.366
 First grade of high school 15.54 ± 1.08 15.01 ± 0.96  
 Second grade of high school 16.89 ± 0.89 16.25 ± 1.14  
 Third grade of high school 17.26 ± 1.78 17.47 ± 1.33  
 Fourth grade of high school 18.91 ± 1.38 18.63 ± 1.27  
Socio-economic status    0.771
 Low, n (%) 11 (45.8) 12 (46.2)  
 Medium, n (%) 10 (41.7) 6 (23.1)  
 High, n (%) 3 (12.5) 7 (30.7)  
  1. M mean, SD standard deviation, p values refer to the χ2 test