Table A1.
Variable in this study.
| Construct | Role | Type | Variable Name |
|---|---|---|---|
| Whole-brain cortex surface area | Outcome | Continuous | smri_area_cort.desikan_total |
| NIH Toolbox Fluid Cognitive ability | Validation of the Outcome | Continuous | nihtbx_fluidcomp_uncorrected |
| Wisconsin Cognitive ability (TSS) | Validation of the Outcome | Continuous | pea_wiscv_tss |
| Race | Moderator | Categorical | race.4level |
| Parental Education | Predictor | Categorical | high.educ.bl |
| Household Income | Predictor | Categorical | household.income.bl |
| Age | Covariate | Continuous | age |
| Sex | Covariate | Categorical | sex |
| Ethnicity (Hispanic) | Covariate | Categorical | hisp |