Table 1 Demographic and clinical description of the sample of children with and without MPH prescription.

Gender (M:F)

83:22

276:50

0.180^a

Adoptive (Y/N)

8:97

9:317

0.026^a

Age (years ± SD)

9.7 ± 2.7

8.7 ± 2.1

0.000^b

SES (Mean ± SD)

47.7 ± 10.7

50.9 ± 11.5

0.039^b

IQ (Mean ± SD)

83.5 ± 20.7

95.8 ± 14.9

0.000^b

ADHD subtype (C:H:I)

87:1:17

241:18:67

0.068^a

ASD comorbidity

38:67

35:291

0.000^a

ID comorbidity

31:74

32:294

0.000^a

ODD comorbidity

20:85

9:317

0.000^a

SLD comorbidity

18:87

119:207

0.000^a

AD comorbidity

5:100

28:298

0.200^a

MD comorbidity

7:98

13:313

0.256^a

SWD comorbidity

9:96

39:287

0.337^a

Tic comorbidity

5:100

12:314

0.621^a

DCD comorbidity

5:100

6:320

0.099^a

CD comorbidity

2:103

6:320

0.966^a

LD comorbidity

10:95

17:309

0.113^a

CPRS-R Oppositional (Mean ± SD)

70.2 ± 15.9

63.8 ± 15.9

0.010^b

CPRS-R Cognitive Problems (Mean ± SD)

78.8 ± 12.5

74.3 ± 12.5

0.023^b

CPRS-R Hyperactivity–Impulsivity (Mean ± SD)

74.1 ± 14.3

70.3 ± 14.1

0.082^b

CPRS-R ADHD Index (Mean ± SD)

80.0 ± 11.3

76.4 ± 11.5

0.044^b

CPRS-R Global Index Emotional Liability (Mean ± SD)

65.1 ± 15.5

59.0 ± 15.7

0.011^b

CGI-S (Mean ± SD)

5.2 ± 0.6

3.9 ± 0.7

0.000^b