Table 3.

The K-WISC-IV Digit span scores of ADHD and TC

Digit span	Mean (SD) score		p-value	Adjusted p-value*
	ADHD (N=179)	TC (N=132)
Forward	10.0 (3.6)	11.9 (2.8)	<0.001	0.041
Backward	9.0 (3.6)	10.6 (3.1)	<0.001	0.114

Multiple comparison corrected significance level, p<0.025.

^*adjusted for FSIQ and gender.

ADHD: attention deficit/hyperactivity disorder, K-WISC-IV: Korean–Wechsler Intelligence Scale for Children, Fourth Edition, TC: typically-developing children, FSIQ: full-scale intelligent quotient