Table 1. Cohort Characteristics .

Characteristic	No DCD (n = 30)	DCD (n = 31)	P value
Boys, No. (%)	21 (70)	26 (84)	.20
Age, mean (SD), y	9.9 (1.4)	10.1 (1.2)	.24
MABC-2 percentile, median (IQR)	63 (31.8)	3.5 (8.0)	.001
Conners 3 ADHD Index t score, median (IQR)	45 (17.8)	90 (5.5)	.001
Head Motion Index score, mean (SD)	1.5 (0.34)	1.6 (0.31)	.95

Abbreviations: ADHD, attention-deficit/hyperactivity disorder; DCD, developmental coordination disorder; IQR, interquartile range; MABC-2, Movement Assessment Battery for Children, second edition.