Skip to main content

Table 2 The effect of vitamin D and magnesium supplementation compared with placebo on behavior in children with ADHD based on strengths and difficulties questionnaire1

From: The effect of vitamin D and magnesium supplementation on the mental health status of attention-deficit hyperactive children: a randomized controlled trial

Independent variables Un adj. Effect size
(Cohen’s d)
Adj. Effect size (Partial Eta)
  p-value Covariate p-value
Emotional problem 0.025 - 0.565 Sex
Age
BMI
Ritalin dose
Group
0.181
0.681
0.811
0.877
0.051
0.031
0.003
0.001
0.001
0.063
Conduct problem 0.096 - 0.416 Sex
Age
BMI
Ritalin dose
Group
0.053
0.018
0.010
0.007
0.117
0.06
0.092
0.110
0.130
0.041
Hyperactivity 0.28 - 0.269 Sex
Age
BMI
Ritalin dose
Group
0.061
0.966
0.070
0.15
0.275
0.06
0.001
0.055
0.035
0.02
Peer problem 0.003 - 0.760 Sex
Age
BMI
Ritalin dose
Group
0.110
0.001
0.002
0.002
0.006
0.045
0.165
0.156
0.157
0.122
Prosocial 0.18 - 0.334 Sex
Age
BMI
Ritalin dose
Group
0.248
0.085
0.106
0.019
0.170
0.023
0.049
0.044
0.090
0.031
Total difficulties 0.005 - 0.712 Sex
Age
BMI
Ritalin dose
Group
0.017
0.045
0.018
0.013
0.009
0.093
0.067
0.091
0.100
0.112
Externalizing 0.105 - 0.404 Sex
Age
BMI
Ritalin dose
Group
0.026
0.151
0.011
0.013
0.120
0.081
0.035
0.110
0.109
0.042
Internalizing 0.001 - 0.855 Sex
Age
BMI
Ritalin dose
Group
0.052
0.041
0.141
0.070
0.003
0.061
0.070
0.036
0.054
0.140
  1. For comparison of continus variables ANCOVA test has been used
  2. BMI, body mass index