Table 1.

Data distribution for the ADHD and TD groups.

Number of Scales Completed	ADHD group(n = 799)		TD group(n = 421)
	Boys(n = 689)	Girls(n = 110)	Boys(n = 343)	Girls(n = 78)
Single scale
CPRS-R:S	42	8	20	1
CTRS-R:S	2	1	8	2
SNAP-IV-P	11	2	0	0
SNAP-IV-T	1	1	0	0
Dual scales
CPRS-R:S, CTRS-R:S	112	18	54	20
CPRS-R:S, SNAP-IV-P	129	22	38	10
CPRS-R:S, SNAP-IV-T	0	0	0	0
CTRS-R:S, SNAP-IV-P	1	0	0	0
CTRS-R:S, SNAP-IV-T	9	0	6	0
SNAP-IV-P, SNAP-IV-T	42	8	0	0
Triple scales
CPRS-R:S, CTRS-R:S, SNAP-IV-P	15	4	2	0
CPRS-R:S, CTRS-R:S, SNAP-IV-T	3	2	0	0
CPRS-R:S, SNAP-IV-P, SNAP-IV-T	26	4	2	1
CTRS-R:S, SNAP-IV-P, SNAP-IV-T	6	1	1	0
Quad scales
CPRS-R:S, CTRS-R:S, SNAP-IV-P, SNAP-IV-T	222	33	170	37
Completed scales with missing value detected	68	6	42	7

Each element shows the number of participants who completed different scales included in this study. ADHD, attention-deficit/hyperactivity disorder; TD, typically developing; CPRS-R:S, the Chinese version of the Conners’ parent rating scales-revised: short form; CTRS-R:S, the Chinese version of the Conners’ teacher rating scales-revised: short form; SNAP-IV-P, the Chinese version of the Swanson, Nolan, and Pelham version IV scale, parent form; SNAP-IV-T, the Chinese version of the Swanson, Nolan, and Pelham version IV scale, teacher form.