Table 1.
Demographics for the Adolescent Brain Cognitive Development (ABCD) Study.
| Release 3.0 (%) | Sample in this | |
|---|---|---|
| [baseline] | report (%) | |
| Youth sex | ||
| Male | 6,196 (52.1%) | 3,612 (52.5%) |
| Female | 5,682 (47.8%) | 3,262 (47.5%) |
| Annual household income | ||
| < $5,000 | 417 (3.5%) | 168 (2.4%) |
| $5,000–$11,999 | 421 (3.5%) | 187 (2.7%) |
| $12,000–$15,999 | 274 (2.3%) | 137 (2.0%) |
| $16,000–$24,999 | 524 (4.4%) | 254 (3.7%) |
| $25,000–$34,999 | 654 (5.5%) | 342 (5.0%) |
| $35,000–$49,999 | 934 (7.9%) | 503 (7.3%) |
| $50,000–$74,999 | 1,499 (12.6%) | 926 (13.5%) |
| $75,000–$99,999 | 1,572 (13.2%) | 983 (14.3%) |
| $100,000–$199,999 | 3,315 (27.9%) | 2,371 (34.5%) |
| ≥$200,000 | 1,250 (10.5%) | 1,003 (14.6%) |
| Missing/Undefined | 1,018 (8.6%) | 0 (0.0%) |
| Area deprivation index | ||
| ≤33 percentile (Low) | 5,392 (45.4%) | 3,655 (53.2%) |
| 34–66 percentile (Mid) | 3,499 (29.5%) | 2,162 (31.5%) |
| ≥67 percentile (High) | 2,055 (17.3%) | 1,057 (15.4%) |
| Missing/Undefined | 932 (7.8%) | 0 (0.0%) |
| Youth Race | ||
| American Indian/Alaska Native | 62 (0.5%) | 26 (0.4%) |
| Asian | 276 (2.3%) | 192 (2.8%) |
| Black | 1,869 (15.7%) | 822 (12.0%) |
| Native Hawaiian/Pacific Islander | 16 (0.1%) | 8 (0.1%) |
| Other | 1,959 (16.5%) | 1,096 (15.9%) |
| White | 7,525 (61.1%) | 4,730 (68.8%) |
| Missing/Undefined | 171 (1.4%) | 0 (0.0%) |
| Youth ethnicity | ||
| Hispanic | 2,411 (20.3%) | 1,258 (18.3%) |
| Not hispanic | 9,314 (78.4%) | 5,616 (81.7%) |
| Missing/Undefined | 153 (1.3%) | 0 (0.0%) |
| Total | 11,878 (100%) | 6,874 (100%) |
The “Other” Race category includes those who identified “Other Race” (n = 392) and those who identified more than one race (i.e., multiracial). As race was not the primary focus on this paper, our analyses treated race in accordance with the National Institutes of Health's Office of Management and Budget standards (https://orwh.od.nih.gov/toolkit/other-relevant-federal-policies/OMB-standards).