Table 1.

Demographic and characteristic data for the full cohort and subgroups (FH+, FH−, and FH+/−).

	Full Cohort	FH+	FH−	FH+/−
	(N = 1894)	(N = 451)	(N = 1169)	(N = 274)
Biological Sex, N(%)
Male	876 (46)	197 (44)	542 (46)	137 (50)
Female	1018 (54)	254 (56)	627 (54)	137 (50)
Age in months, Mean (SD)
Male	120.50 (7.51)	119.82 (7.67)	120.61 (7.86)	121.03 (7.59)
Female	120.01 (7.44)	119.74 (7.26)	120.08 (7.41)	120.23 (7.93)
Framewise Displacement, Mean (SD)
Male	0.12 (0.08)	0.13 (0.09)	0.12 (0.08)	0.13 (0.10)
Female	0.11 (0.07)	0.12 (0.08)	0.11 (0.07)	0.11 (0.07)
MRI Scanner Model, N(%)
GE Discovery MR750	528 (28)	148 (33)	311 (27)	69 (25)
Siemens Prisma	691 (36)	145 (32)	448 (38)	98 (36)
Siemens Prisma Fit	675 (36)	158 (35)	410 (35)	107 (39)
Household Income, N(%)
< $50,000	421 (22)	157 (35)	220 (19)	44 (16)
$50,000 - $100,000	569 (30)	146 (32)	333 (28)	90 (33)
$100,000+	904 (48)	148 (33)	616 (53)	140 (51)
Parent Education, N(%)
> High School	49 (3)	12 (3)	35 (3)	2 (1)
High School/GED	127 (7)	53 (12)	66 (6)	8 (3)
Some College	284 (10)	65 (14)	91 (8)	28 (10)
Associates/Bachelor	981 (52)	233 (52)	607 (52)	141 (51)
Post-graduate	553 (29)	88 (20)	370 (32)	95 (35)
Race/Ethnicity, N(%)
White	1104 (63)	260 (58)	749 (64)	185 (68)
Black	141 (7)	49 (11)	74 (6)	18 (7)
Hispanic/Latinx	341 (18)	87 (19)	206 (18)	48 (18)
Asian	38 (0.2)	0 (0)	37 (3)	1 (0.4)
Other	180 (10)	55 (12)	103 (9)	22 (8)
In Utero Substance, N(%)
Yes	73 (4)	45 (10)	15 (1)	13 (5)
No	1821 (96)	406 (90)	1154 (99)	261 (95)
Parent Mental Health, N(%)
Yes	995 (53)	370 (82)	470 (40)	155 (57)
No	899 (47)	81 (18)	699 (60)	119 (43)