Table 1.
Weighted descriptive characteristics of the random subcohort, stratified by baseline diabetes status
| Overall (N = 2,136) | Baseline diabetes | ||
|---|---|---|---|
| Without diabetes (N = 1,728) | With diabetes (N = 408) | ||
| Age (years), mean (SD) | 64.2 (9.1) | 64.0 (9.1) | 65.3 (8.9) |
| Sex (%) | |||
| Female | 58.6 | 58.4 | 59.3 |
| Male | 41.4 | 41.6 | 40.7 |
| Race (%) | |||
| Black | 44.1 | 40.5 | 60.0 |
| White | 55.9 | 59.5 | 40.0 |
| Region (%) | |||
| Stroke Belt area | 34.5 | 34.7 | 33.8 |
| Stroke Belt Buckle area | 19.1 | 18.7 | 21.0 |
| Non-Belt area | 46.4 | 46.6 | 45.2 |
| Smoker (%) | |||
| Current | 13.5 | 13.8 | 12.0 |
| Never | 49.3 | 48.9 | 51.1 |
| Past | 37.2 | 37.3 | 36.9 |
| Income levels (%) | |||
| <$20,000 | 22.8 | 22.3 | 25.0 |
| $20,000–$34,000 | 30.0 | 30.6 | 27.5 |
| $35,000–$74,000 | 17.2 | 18.5 | 11.3 |
| ≥$75,000 | 16.2 | 14.5 | 23.9 |
| Refused to answer | 13.8 | 14.1 | 12.3 |
| Education levels (%) | |||
| Less than high school | 11.1 | 9.62 | 17.7 |
| High school graduate | 24.3 | 23.2 | 29.0 |
| Some college | 27.7 | 28.5 | 23.8 |
| College graduate and above | 37.0 | 38.7 | 29.4 |
| Systolic BP (mmHg), mean (SD) | 127 (16.2) | 126 (15.7) | 131 (17.5) |
| BMI (kg/m2), mean (SD) | 29.4 (5.93) | 28.7 (5.67) | 32.4 (6.12) |
| LDL cholesterol (mg/dL), mean (SD) | 117 (34.4) | 120 (33.9) | 104 (33.4) |
| HDL cholesterol (mg/dL), mean (SD) | 52.6 (15.9) | 53.6 (16.1) | 48.0 (14.3) |
| CRP (mg/L), median (inner quartiles) | 2.21 (0.98–4.78) | 2.03 (0.94–4.55) | 2.88 (1.39–6.72) |
| Incident CVD, (% yes)* | 8.25 | 7.32 | 12.4 |
| Dissimilarity index, median (interquartile range) | 0.53 (0.39–0.63) | 0.53 (0.39–0.63) | 0.53 (0.41–0.63) |
| Interaction index, median (interquartile range) | 0.41 (0.30–0.58) | 0.41 (0.30–0.59) | 0.40 (0.28–0.52) |
| Isolation index, median (interquartile range) | 0.49 (0.33–0.66) | 0.48 (0.32–0.66) | 0.52 (0.36–0.68) |
| Glycosylated hemoglobin (A1C) (%), median (interquartile range) | 5.97 (5.63–6.36) | 5.86 (5.57–6.17) | 7.00 (6.38–7.87) |
| Insulin usage (% yes) | 4.27 | 0.00 | 23.6 |
| Oral glucose-lowering medications (% yes) | 13.6 | 0.00 | 74.9 |
| Statin therapy (% yes) | 25.8 | 22.4 | 41.0 |
Values for continuous variables are weighted mean (weighted SD) or weighted median (weighted interquartile range). Values for categorical variables are percentages.
*
Incident CVD was defined stroke, CHD, or fatal CHD during 7-year follow-up.