Table 1.

Demographical information of study participants by age group, sex, and data source.

Participant information			Data source
Age group (Years)	Total $N$	Mean age ($SD$)	ABIDE $N$	BCP $N$	CMIHBN $N$	IBIS $N$	MCBI and collaboration sites $N$	PING $N$
2	74	2.07(0.11)	0	8	0	65	1	0
3	36	3.40(0.31)	0	0	0	0	12	24
4	24	4.26(0.19)	0	0	0	0	10	14
5	62	5.23(0.14)	0	0	43	0	0	19
6	10	6.30(0.17)	0	0	0	0	10	0
7	16	7.55(0.29)	5	0	0	0	11	0
8	35	8.43(0.31)	22	0	0	0	13	0
9	19	9.63(0.26)	8	0	0	0	11	0
10	20	10.30(0.21)	6	0	0	0	14	0
11	2	11.44(0.23)	0	0	0	0	2	0
12	29	12.36(0.19)	9	0	0	0	20	0
12.5	21	12.79(0.26)	0	0	0	0	21	0
13	22	13.16(0.20)	11	0	0	0	11	0
13.5	33	13.74(0.14)	25	0	0	0	8	0
14	47	14.28(0.25)	21	0	1	0	25	0
15	11	15.55(0.40)	0	0	0	0	11	0
16	49	16.34(0.29)	2	0	0	0	47	0
17	15	17.31(0.25)	0	0	0	0	15	0
18	27	18.29(0.18)	9	0	0	0	18	0
18.5	28	18.71(0.14)	6	0	0	0	22	0
19	23	19.19(0.09)	4	0	0	0	19	0
19.5	24	19.72(0.13)	4	0	0	0	20	0
20 to 24	138	22.25(2.83)	0	0	0	0	138	0
25 to 29	39	26.54(1.72)	0	0	0	0	39	0
30 to 34	33	32.19(1.47)	0	0	0	0	33	0

Note: ABIDE, Autism Brain Imaging Data Exchange; BCP, Baby Connectome Project; CMIHBN, Child Mind Institute Healthy Brain Network; IBIS, Infant Brain Imaging Study; MCBI, McCausland Center for Brain Imaging; PING, Pediatric Imaging, Neurocognition, and Genetics Data Repository.