Table 1 Description of study participants (N = 3818)

From: Implementation of type 1 diabetes genetic risk screening in children in diverse communities: the Virginia PrIMeD project

Variable		Number (%)
Sex	Female	1859 (48.7%)
	Male	1959 (51.3%)
Age at recruitment (years)^a	2–5	1143 (30.0%)
	6–9	1163 (30.4%)
	10–12	816 (21.4%)
	13–16	694 (18.2%)
Ancestry	White and LatinX	3163 (82.8%)
	Black	693 (18.2%)
	Asian	136 (3.6%)
	Other/not specified	84 (2.2%)
T1D at baseline (n = 3818)?	Yes, prevalent	91 (2.4%)
	No	3727 (97.6%)
	FDR with T1D^b	208 (6.4%)
	No FDR with T1D	3064 (93.6%)
T1D at follow-up? (n = 2975)	Yes, incident	21 (0.7%)
	No	2954 (97.6%)
	FDR with T1D^b	71 (2.4%)
	No FDR with T1D	2883 (97.6%)
Genetic risk score (high ≥ 5)	High	542 (14.2%)
	Not High	3276 (85.8%)

T1D type 1 diabetes, FDR first-degree relative
^aTwo participants were age 17 years (beyond the pre-selected age category) yet were enrolled in the study per IRB exception, given prior participation of a sibling; these participants (n = 2) are not included in the age distribution but are included in other demographic information
^bFour hundred fifty-five participants did not provide data on having a first-degree relative (FDR) with type 1 diabetes (T1D) at baseline

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