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Table 1 Comparisons of Opinion about Mental Illness (OMI) scale and General Health Questionnaire (GHQ-28) mean scores in baseline (BL) and end of training (ET) assessments (n = 78)

From: Education in mental health promotion and its impact on the participants' attitudes and perceived mental health

  BL assessment, mean (SE) ET assessment, mean (SE) Effect size F (df = 1.77) P valuea
OMI (Greek version):      
Factor A (social discrimination) 20.6 (1.9) 15.7 (1.3) 0.34 4.37 0.040
Factor B (social restriction) 13.8 (1.7) 9.1 (0.8) 0.40 4.31 0.041
Factor C (social care) 23.4 (0.5) 23.7 (0.4) 0.07 2.10 0.151
Factor D (social integration) 20.0 (0.7) 21.5 (0.4) 0.31 4.58 0.036
Factor E (etiology) 9.9 (0.7) 8.5 (0.6) 0.24 1.33 0.253
GHQ-28 subscales      
Somatic symptoms 4.1 (0.4) 3.4 (0.3) 0.22 3.29 0.074
Anxiety/insomnia 5.1 (0.5) 3.8 (0.4) 0.33 5.39 0.024
Social dysfunction 6.2 (0.3) 5.2 (0.3) 0.38 4.26 0.042
Severe depression 1.6 (0.3) 1.2 (0.3) 0.15 1.09 0.301
Total score 17.0 (1.1) 13.6 (0.9) 0.38 10.17 0.002
  1. aP value for time effect (analysis of multivariate analysis of covariance (MANCOVA)).