Table 1.

Selected Participant Characteristics Stratified by Diagnosed Diabetes Status, Sex, and Age

	No History of Diabetes				Diagnosed Diabetes
	Male		Female		Male		Female
	20-39 y	40-69 y	20-39 y	40-69 y	20-39 y	40-69 y	20-39 y	40-69 y
Unweighted, N	2779	2526	2560	2588	35	385	50	376
Age (y)	28.7 ± 0.2	51.5 ± 0.5	28.9 ± 0.2	51.8 ± 0.2	34.4 ± 0.8	55.1 ± 0.5	32.1 ± 0.8	56.6 ± 0.6
Race/ethnicity (%)
Non-Hispanic white	64.7	78.7	64.3	75.7	59.1	64.1	38.9	53.3
Non-Hispanic black	11.1	8.8	13.0	9.8	14.5	13.5	25.7	18.9
Mexican American	11.6	5.2	9.2	4.7	4.4	8.2	13.1	9.8
Other or multiracial	12.6	7.4	13.5	9.9	21.9	14.2	22.3	18.0
Body mass index (kg/m2)	26.9 ± 0.1	28.5 ± 0.2	27.0 ± 0.2	28.7 ± 0.2	33.7 ± 1.5	31.9 ± 0.6	33.2 ± 1.7	33.8 ± 0.5
Waist circumference (cm)	93.9 ± 0.4	102.2 ± 0.4	88.3 ± 0.5	94.4 ± 0.5	114.7 ± 3.8	110.6 ± 1.4	103.2 ± 3.5	108.4 ± 0.9
Total fat (mean %)	25.5 ± 0.2	28.8 ± 0.2	37.5 ± 0.2	40.5 ± 0.2	31.5 ± 1.1	31.3 ± 0.5	40.2 ± 1.3	43.1 ± 0.4
Trunk fat (mean %)	25.7 ± 0.2	30.4 ± 0.2	35.1 ± 0.3	39.1 ± 0.2	33.6 ± 1.3	33.8 ± 0.6	40.5 ± 1.6	43.7 ± 0.4
Total lean mass (mean %)	71.9 ± 0.2	68.7 ± 0.2	59.9 ± 0.1	57.1 ± 0.2	66.4 ± 1.0	66.4 ± 0.5	57.6 ± 1.3	54.8 ± 0.4
Trunk lean mass (mean %)	72.5 ± 0.2	68.0 ± 0.2	63.1 ± 0.3	59.4 ± 0.2	65.0 ± 1.2	64.8 ± 0.5	58.0 ± 1.6	55.0 ± 0.4
HbA1c (mean %)	5.1 ± 0.01	5.4 ± 0.02	5.1 ± 0.01	5.4 ± 0.02	8.3 ± 0.4	7.5 ± 0.1	8.6 ± 0.4	7.4 ± 0.1
Undiagnosed diabetes (%)a	0.4	3.1	0.4	1.7	n/a	n/a	n/a	n/a
Prediabetes (%)b	4.6	16.9	3.7	17.8	n/a	n/a	n/a	n/a

Data are weighted means ± standard error or proportions.

^aHbA_1c ≥ 6.5%.

^bHbA_1c 5.7% to 6.4%.