Table 1 Participant characteristics (total N=6,256) at the baseline examination 2000-2002
| Â | N | % | Â | N/mean | %/SD |
|---|---|---|---|---|---|
Gender | Â | Â | Diabetes | Â | Â |
   Male | 2974 | 47.5 |    Normal | 4635 | 74.1 |
   Female | 3282 | 52.5 |    IFG* | 855 | 13.7 |
Age(years) |  |  |    Treated diabetes | 157 | 2.5 |
   45-54 | 1828 | 29.2 |    Untreated diabetes | 589 | 9.4 |
   55-64 | 1755 | 28.1 |    Missing | 20 | 0.3 |
   65-74 | 1838 | 29.4 | Education |  |  |
   75-84 | 835 | 13.3 |    Less than high school graduate | 1057 | 16.9 |
Race-ethnicity |  |  |    High school graduate | 1135 | 18.1 |
   White | 2449 | 39.1 |    Some college | 1776 | 28.4 |
   Chinese | 735 | 11.7 |    College graduate or higher | 2269 | 36.3 |
   Black | 1714 | 27.4 |    Missing | 19 | 0.3 |
   Hispanic | 1358 | 21.7 | Lipid lowering medication |  |  |
Income ($/year) |  |  |    No | 5238 | 83.7 |
<12,000 | 655 | 10.5 |    Yes | 1015 | 16.2 |
   12,000-24,999 | 1161 | 18.6 |    Missing | 3 | 0.05 |
   25,000-49,999 | 1748 | 27.9 | Hypertension |  |  |
   50,000-74,999 | 1048 | 16.8 |    No | 3504 | 56.0 |
   ≥75,000 | 1410 | 22.5 |    Yes | 2752 | 44.0 |
   missing | 234 | 3.7 | MESA area |  |  |
Cigarette smoking |  |  |    Forsyth County (Winston-Salem) | 999 | 16.0 |
   Never | 3145 | 50.3 |    New York | 1021 | 16.3 |
   Former | 2299 | 36.7 |    Baltimore | 975 | 15.6 |
   Current | 794 | 12.7 |    St. Paul | 982 | 15.7 |
   Missing | 18 | 0.3 |    Chicago | 1088 | 17.4 |
BMI* |  |  |    Los Angeles County | 1191 | 19.0 |
   <23 | 1796 | 28.7 | Total choleterol (mg/dl) | 194.1 | 35.4 |
   23-27.5 | 2459 | 39.3 | HDL choleterol (mg/dl) | 50.9 | 14.7 |
   27.6-40 | 1777 | 28.4 | LDL choleterol (mg/dl) | 117.2 | 31.2 |
>40 | 224 | 3.6 | Triglycerides (mg/dl) | 131.0 | 86.6 |
| Â | Â | Â | Waist circumference(cm) | 98.0 | 14.3 |
| Â | Â | Â | Body surface area | 1.9 | 0.2 |