Table 4.

Interaction between parental education and race on the whole-brain cortical surface area.

Characteristics	b	S.E.	t	p
Sex	16,438.91 ***	289.86	56.71	<0.001
Age	3.39	18.68	0.18	0.856
Hispanic	−2375.15 ***	490.20	−4.85	<0.001
Married	595.55	408.13	1.46	0.144
Income
< 50K
≥50K and <100K	1321.45 **	486.56	2.72	0.007
≥100K	2337.38 ***	548.10	4.26	<0.001
Education
Less than High School Diploma	-
High School Diploma/GED	2974.74 #	1550.21	1.92	0.055
Some College	3135.11 *	1386.49	2.26	0.024
Bachelor’s	4929.80 ***	1409.24	3.50	<0.001
Postgraduate	6504.50 ***	1410.35	4.61	<0.001
Race
White	-
Black	−6334.77 **	1977.91	−3.20	0.001
Asian	−14,335.49 *	6453.45	−2.22	0.026
Other/Mixed	511.17	1909.14	0.27	0.789
2 × 2 Interactions
High School Diploma/GED × Black	−4525.20 *	2285.52	−1.98	0.048
Some College × Black	−3056.93	2098.03	−1.46	0.145
Bachelor’s × Black	−5429.60 *	2254.01	−2.41	0.016
Postgraduate × Black	−5720.24 *	2252.90	−2.54	0.011
High School Diploma/GED × Asian American	6386.63	10,734.14	0.59	0.552
Some College × Asian American	7278.74	7348.76	0.99	0.322
Bachelor’s × Asian American	10,912.54	6750.42	1.62	0.106
Postgraduate × Asian American	9298.08	6589.36	1.41	0.158
High School Diploma/GED × Other/Mixed-Race	−4519.84	2368.99	−1.91	0.056
Some College × Other/Mixed-Race	−3107.06 #	2053.75	−1.51	0.130
Bachelor’s × Other/Mixed-Race	−2674.71	2093.12	−1.28	0.201
Postgraduate × Other/Mixed-Race	−2676.78	2067.34	−1.29	0.195

# p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001.