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Table 2 Studies reporting mean and SD of the knowledge and attitude of the subjects as separate variables 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

Study   Knowledge Attitude
Author Sample Before M (SD) After M (SD) Score
Range
Statistical sig. Before
M (SD)
After
M (SD)
Score
Range
Statistical sig.
Motallebi, 1996 Behvarz 15.43(5.04) 32.52(2.84) 0–38 t = 30.99
p < 0.01
8.39(2.23) 12.58(1.41) 0–26 t = 16
p < 0.01
Davasaz, 2004 General population         
  Experimental 36.36(8.4) 46.9(4.78) 0–58 F = 107.26 6.29(5.7) 14.51(3.36) 0-22 F = 56.43
  Control 1* 32.73(8.85) 35.96(5.44) 0–51 df = 2,270 6.36(4.04) 6.65(3.67)   df = 2,264
  Control 2* 32.04(6.68) 30.94(4.44) 0–42 p < 0.0001 4.43(3.01) 5.20(2.79)   P < 0.0001
Bolhari, 1995 General
population
        
  Experimental - - - - 14.33(2.87) 14.7(3.07) 0-22 t = 2.21**
p < 0.05
  Control      14.44(2.91) 14(3.04)   
Shahmohammadi,
1990
General
population
        
  Experimental - - - - 18.79(22.27) 23.12(24.34) 0–30 t = 9.44**
p < 0.01
  Control      18.25(22.75) 20.18(28.75)   
  1. * Control 1 has been selected from the same village and control 2 from two other villages
  2. ** 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