Table 2.
Associations of demographic covariates with anticorrelation of DMN and DAN
| Phenotype (IV) | B | SE | t | P | R2∆ |
|---|---|---|---|---|---|
| Child age | −0.0006 | 0.0001 | −5.25 | 1.55E-07 | 0.004 |
| Child sex (male) | 0.0151 | 0.0016 | 9.50 | <2e-16 | 0.014 |
| Scanner motion | 0.0990 | 0.0050 | 19.84 | <2e-16 | 0.057 |
| Parent’s highest education (high school) | 0.0033 | 0.0056 | 0.59 | 0.5560 | 0.005 |
| Parent’s highest education (some college) | 0.0065 | 0.0050 | 1.30 | 0.1940 | |
| Parent’s highest education (bachelor’s) | −0.0015 | 0.0051 | −0.30 | 0.7650 | |
| Parent’s highest education (graduate) | −0.0053 | 0.0050 | −1.06 | 0.2910 | |
| Child race (Black) | 0.0178 | 0.0026 | 6.96 | 3.83E-12 | 0.008 |
| Child race (Asian) | −0.0041 | 0.0058 | −0.71 | 0.4767 | |
| Child Race (Other) | 0.0056 | 0.0023 | 2.48 | 0.0131 | |
| Parent’s income ($50 000–$100 000) | −0.0126 | 0.0021 | −6.03 | 1.79E-09 | 0.006 |
| Parent’s income (>$100 000) | −0.0063 | 0.0022 | −2.86 | 0.0042 |
B, unstandardized regression coefficient; SE, standard error of regression coefficient; t, t−statistic of regression coefficient; P, alpha value of regression coefficient; R2, variance explained by that variable. For multi-category variables (i.e., race and income), R2 represents the variance explained by all dummy variables for a given category. For race, “White” was used as the reference category; for income, “<$50 000” was used as the reference category, for parent’s highest education, “Less than a high school degree” was used as the reference category.