Table 3.
Characteristics (Combined Ethnicities) of T2D Converter and Nonconverter Subjects
| Trait | Combined Subjects (n = 146) |
Nonconverter (n = 70) |
T2D Converter (n = 76) |
P Valuea | |||
|---|---|---|---|---|---|---|---|
| Mean ± sd | Median | Mean ± sd | Median | Mean ± sd | Median | ||
| Age, y | 56 ± 8 | 56 | 54 ± 9 | 54 | 57 ± 7 | 57 | .058 |
| Female, % | 63% | 64% | 62% | .76 | |||
| BMI, kg/m2 | 29.6 ± 5.4 | 28.5 | 28.3 ± 4.3 | 27.6 | 30.9 ± 6.0 | 29.8 | .0023 |
| SI, ×10−5/pmol/L/min | 2.44 ± 2.78 | 1.43 | 3.64 ± 3.10 | 4.18 | 1.34 ± 1.87 | 1.02 | 4.4E − 07 |
| AIR, pmol/L | 404 ± 399 | 286 | 546 ± 474 | 397 | 273 ± 256 | 179 | 4.2E − 05 |
| Disposition index (SI × AIR), ×10−5/min | 868 ± 1350 | 283 | 1495 ± 1696 | 1038 | 290 ± 414 | 119 | 1.5E − 07 |
| Fasting glucose, mg/dl | 101 ± 13 | 99 | 95 ± 10 | 94 | 108 ± 13 | 106 | 1.8E − 10 |
a
Comparison of high and low SI samples using a two-tailed t test with unequal variance. Bold indicates statistical significance (P < 0.05).