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. 2024 Mar 6;44(10):e1202232023. doi: 10.1523/JNEUROSCI.1202-23.2023

Table 1.

Description of cohorts

	ABCD ARMS-1	ABCD ARMS-2	Oregon-ADHD-1000
Sample size	2,747	2,796	553
Mean age (SD)	9.97 (0.63)	9.98 (0.62)	10.25 (1.56)^a
% Female	52.9	50.2	37.4
% Caucasian	65.0	65.5	79.7
% ADHD Dx	3.3	4.1	57.1^a
Inattention symptoms^‡	53.4 (5.7)	53.3 (5.7)	63.9 (16.8)^a

^a

At earliest scan.

^‡

Inattention symptoms (T-scores) measured by parent-reported Child Behavior Checklist in ABCD and parent-reported Conners 3 in the Oregon-ADHD-1000.