Table 1.

Physical and Metabolic Characteristics by Prediabetes Status

	NGT	Prediabetes
n	106	42
Age, y	16.0 ± 1.2	16.1 ± 1.1
Gender (male/female), n	51/55	21/21
Pubertal stage, n
1–3	2	3
4	18	10
5	86	29
Height, cm	166.7 ± 9.5	165.8 ± 8.8
Weight, kg	90.3 ± 19.5	96.0 ± 22.9
Adiposity measures
BMI, kg/m2	32.2 ± 5.4	35.0 ± 7.8a
BMI z-score	1.96 ± 0.47	2.11 ± 0.57a
Total % fat	36.5 ± 8.1	37.1 ± 7.4
Total fat mass, kg	31.6 ± 9.7	34.8 ± 12.9a
Total lean mass, kg	52.5 ± 11.6	55.3 ± 10.6
Ectopic fat depots
SAT, L	7.2 ± 3.3	8.4 ± 4.2
VAT, L	1.5 ± 1.0	2.0 ± 1.4
HFF, %	3.9 ± 2.9	8.3 ± 9.2c
PFF, %	3.3 ± 2.0	4.5 ± 3.0b
Metabolic parameters
Fasting glucose, mg/dL	84.7 ± 5.9	89.7 ± 7.7c
2-h glucose, mg/dL	110.9 ± 17.3	133.4 ± 26.1c
Hemoglobin A1C, %	5.5 ± 0.3	5.9 ± 0.3c
HOMA-IR	3.1 ± 2.2	4.6 ± 3.0b
SI, × 10−4 min−1/μU/mL	1.84 ± 1.10	1.28 ± 0.86c
AIRg, μU/mL × 10 min	1519 ± 1002	1722 ± 1484
DI	2210 ± 1154	1641 ± 989b

Data are expressed as unadjusted means ± SD.

^aP < .05;

^bP < .01;

^cP < .001.