Table 1.

Philadelphia neurodevelopmental cohort (PNC)

		Discovery	Replication	Total
n		663	336	999
Sex	Male	293	155	448
	Female	370	181	551
Race	White	306	153	459
	Black	286	141	427
	Other	71	42	113
Age	8–10	70	40	110
	11–13	125	63	188
	14–16	195	102	297
	17–19	206	100	306
	20–22	58	30	88
	>22	9	1	10
	Mean	15.82 ± 3.32	15.65 ± 3.32	15.76 ± 3.32

The cross-sectional sample of the PNC has 1601 participants in total. After applying health, structural, and functional imaging quality exclusion criteria (details in Online Methods section), 663 and 336 subjects were included in the final discovery and replication samples, respectively