Table 3 Comparing relative differences for children with and without axis I comorbidity in the multiaxial classifications in the two groups in the two groups of children with ADHD; MoBa and the general child population (All)

 -with axis I comorbididity

104 (22.1)

666 (20.3)

1.09 (0.91–1.31), p = 0.36

 -without axis I comorbidity

204 (18.1)

1600 (20.4)

0.89 (0.78–1.01), p = 0.08

 -with axis I comorbidity

470 (2.1)

3277 (2.4)

0.88 (0.46–1.69), p = 0.71

 -without axis I comorbidity

11 (1.0)

116 (1.5)

0.66 (0.36–1.22), p = 0.19

Axis V scores

Mean (SD)

Mean (SD)

 -with axis I comorbidity

.94 (1.1)

1.17 (1.21)

t = 3.89, p = 0.0001, d = -.20

 -without axix I comorbidity

.51 (.75)

.66 (.88)

t = 5.44, p < 0.0001, d = -.18

 -with axis I comorbidity

51.0 (15.3)

48.2 (18.3)

t = -3.16, p = 0.002, d = .17

 -without axis I comorbidity

56.7 (11.7)

54.2 (16.2)

t = -4.99, p < 0.0001, d = .18