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Table 1 Studies reporting mean and SD of the knowledge and attitude of the subjects as a single variable before and after the training

From: The change in attitude and knowledge of health care personnel and general population following trainings provided during integration of mental health in Primary Health Care in Iran: a systematic review

Author Sample Attitude & Knowledge
   Scores range Pre (M, SD) Post (M, SD) Statistical sig.
Shahmohamadi, 1991 Behvarz:     
  (Experimental) 0–50 22.96 ± 47.73 40.81 ± 11.08 t = 11.65*
  (Control)   24.87 ± 21.66 28.64 ± 18.9 p < 0.01
Bolhari, 1995 Behvarz:     
  (Experimental) 0–29 17.68 ± 2.84 21.09 ± 2.37 t = 5.63*
  (Control)   16.4 ± 2.78 17.65 ± 2.03 p < 0.01
Kadivar, 1997 Karshenas 0–20 6.2 ± 2.9 12 ± 5.1 p < 0.05**
  Kardan 0–20 6.2 ± 2.9 12.6 ± 4.1  
  Behvarz 0–20 3.6 ± 2.7 10.8 ± 3.7  
  Behdashtyar 0–20 5.3 ± 2.4 13.6 ± 3.4  
  1. * This comparison has been made between the attitude scores of the experimental and control group after the intervention, while the pretest scores have not been significantly different
  2. * * The amount of t was not reported in the original document