Table 3.

Linear mixed model of total K-ARS scores at each assessment according to sex and first-year high risk group

Effect	F-ratio	p
Time	35.33	<0.001*
Sex	20.77	<0.001*
High risk	240.90	<0.001*
Time×sex	0.20	0.898
Time×high risk	38.14	<0.001*

High risk: first year high-risk group.

^*p<0.01.

K-ARS: Korean version of the ADHD rating scale