Table 1.
Demographic characteristics for each dataset
| Dataset | N | Female (%) | Age Range (Mean, SD) | Race (self-reported) | ||||
|---|---|---|---|---|---|---|---|---|
| Asian | Black | Other/Mixed | White | Missing | ||||
| PNC | 1207 | 646 (53.5%) | 8–23 (15.4 ± 3.5) | 11 (0.9%) | 513 (42.5%) | 132 (10.9%) | 551 (45.7%) | 0 (0%) |
| NKI | 397 | 186 (46.9%) | 6–22 (14.5 ± 4.4) | 34 (8.5%) | 82 (20.7%) | 11 (2.8%) | 258 (65.0%) | 12 (3.0%) |
| HCP-D | 625 | 337 (53.9%) | 5–22 (14.5 ± 4.1) | 48 (7.7%) | 69 (11%) | 97 (15.5%) | 395 (63.2%) | 16 (2.6%) |
| HBN | 1126 | 439 (40%) | 5–22 (11.6 ± 3.5) | 33 (2.9%) | 139 (12.3%) | 307 (27.3%) | 498 (44.2%) | 149 (13.2%) |
The Philadelphia Neurodevelopmental Cohort (PNC) served as the discovery dataset. Replication datasets included the Nathan-Kline Institute-Rockland Sample (NKI), the Human Connectome Project: Development (HCP-D), and the Healthy Brain Network (HBN). Demographic data on race was self-reported. The racial category “Other/Mixed” includes individuals identifying with more than one race, as well as individuals identifying as American Indian or Alaska Native, Hispanic or Latino, or Native Hawaiian or Other Pacific Islander.