Table 1.
Sociodemographic and gender characteristics of Adolescent Brain Cognitive Development (ABCD) Study participants (N = 10,092).
| Sociodemographic and gender characteristics | Mean (SD) / %a |
|---|---|
| Age at Year 3 (years) | 12.91 (0.97) |
| Sex (%) | |
| Male | 51.7 % |
| Female | 48.3 % |
| Race/ethnicity (%) | |
| White | 54.4 % |
| Latino | 19.9 % |
| Black | 15.6 % |
| Asian | 5.5 % |
| Native American | 3.1 % |
| Other | 1.4 % |
| Household income (%) | |
| Less than $25,000 | 16.3 % |
| $25,000 to <$50,000 | 20.0 % |
| $50,000 to <$75,000 | 17.9 % |
| $75,000 to <$100,000 | 14.0 % |
| $100,000 to <$200,000 | 24.2 % |
| $200,000 or higher | 7.7 % |
| Parents’ highest education (%) | |
| More than high school | 82.1 % |
| High school or less | 17.9 % |
| Felt gender groupb | |
| Cisgender/SCFG | 79.6 % |
| 1-STEP | 8.3 % |
| 2-STEP | 5.0 % |
| Minority group | 7.0 % |
| Are you transgender? | |
| No | 97.9 % |
| Maybe | 1.1 % |
| Yes | 1.0 % |
| Felt gender (mean score)c | 1.24 (0.60) |
| Gender non-contentednessc | 1.23 (0.63) |
| Gender expressionc | 1.36 (0.76) |
| Gender spectrum (mean score)d | 2.18 (1.18) |
a
ABCD Study sampling weights were applied based on the American Community Survey from the US Census
b
Categories represent increasing gender diverse identities based on questions of adolescents’ felt gender. In increasing order, categories are cisgender/SCFG, 1-STEP, 2-STEP, and minority group from Potter et al. (2021); SCFG = sex congruent felt gender
c
Scored from 1 (gender conforming) to 5 (gender diverse)
d
Scored from 1 (gender conforming) to 7 (gender diverse)