Table 1 Participant characteristics
Overall | Normal glucose tolerance | Impaired glucose tolerance | p-value* | |
|---|---|---|---|---|
N | 1513 | 1441 | 72 | |
Mean (95% CI) Age | 15.55 (15.38, 15.71) | 15.60 (15.43, 15.76) | 14.47 (13.75, 15.20) | 0.0030 |
Percent (95% CI) Male | 49.94 (45.06, 54.82) | 50.33 (45.22, 55.44) | 41.98 (22.68, 61.28) | 0.4146 |
Mean (95% CI) BMI | 23.87 (23.39, 24.34) | 23.80 (23.34, 24.25) | 25.35 (22.47, 28.24) | 0.2797 |
Mean (95% CI) BMI Z-score | 0.66 (0.57, 0.74) | 0.65 (0.57, 0.73) | 0.93 (0.37, 1.49) | 0.3062 |
Percent (95% CI) with ATP-III MetS | 7.92 (5.77, 10.06) | 7.14 (5.00, 9.29) | 23.74 (8.75, 38.73) | 0.0009 |
MetS Components | ||||
Waist Circumference | ||||
Mean (95% CI) | 82.21 (80.91, 83.50) | 82.00 (80.72, 83.28) | 86.45 (78.86, 94.05) | 0.2486 |
Percent (95% CI) ≥ 90th percentile | 22.42 (19.01, 25.83) | 21.34 (17.82, 24.85) | 44.66 (27.32, 61.99) | 0.0022 |
Triglycerides | ||||
Mean (95% CI) | 85.91 (81.65, 90.17) | 84.42 (80.53, 88.32) | 116.34 (78.83, 153.84) | 0.0952 |
Percent (95% CI) ≥ 110 | 21.60 (18.53, 24.68) | 21.01 (18.19, 23.82) | 33.82 (15.83, 51.81) | 0.0806 |
HDL | ||||
Mean (95% CI) | 53.00 (52.03, 53.97) | 53.07 (52.08, 54.06) | 51.54 (47.06, 56.03) | 0.5079 |
Percent (95% CI) ≤ 40 | 11.46 (9.13, 13.78) | 11.11 (8.82, 13.40) | 18.63 (5.64, 31.61) | 0.1541 |
Blood Pressure | ||||
Mean Systolic (95% CI) | 109.91 (108.87, 110.95) | 109.83 (108.80, 110.87) | 111.46 (105.90, 117.03) | 0.5608 |
Percent (95% CI) ≥ 90th percentile | 8.01 (5.82, 10.20) | 7.36 (9.57, 5.14) | 21.42 (8.08, 34.76) | 0.0025 |
Fasting Blood Glucose | ||||
Mean (95% CI) | 93.09 (92.36, 93.82) | 92.90 (92.19, 93.62) | 96.96 (93.86, 100.06) | 0.0104 |
Percent (95% CI) ≥ 100 | 16.27 (13.41, 19.13) | 15.23 (12.48, 17.99) | 37.60 (21.08, 54.11) | 0.0003 |
Mean (95% CI) HbA1c | 5.26 (5.24, 5.28) | 5.26 (5.23, 5.28) | 5.32 (5.23, 5.40) | 0.1938 |
Mean (95% CI) fasting insulin | 12.17 (11.49, 12.85) | 11.84 (11.29, 12.49) | 18.90 (14.28, 23.51) | 0.0033 |
Percent (95% CI) insulin > 16 IU/mL | 21.62 (18.61, 24.64) | 20.14 (17.26, 23.03) | 51.89 (36.40, 67.37) | < 0.0001 |
Mean (95% CI) MetS Z-score | −0.02 (−0.09, 0.05) | −0.04 (−0.10, 0.03) | 0.32 (−0.20, 0.83) | 0.1703 |