Table 2.
Baseline characteristics of the study population overall and participants with diabetes
| Baseline characteristics | Overall (n = 401) | With diabetes (n = 145) |
|---|---|---|
| Age, yr, mean (SD) | 56.7 (15.8) | 59.7 (12.7) |
| Female, % | 46.9 | 45.5 |
| Race, % | ||
| White | 83.0 | 80.7 |
| Nonwhite | 17.0 | 19.3 |
| Annual income, % | ||
| ≤$25,000 | 18.7 | 18.8 |
| >$25,000 to ≤$55,000 | 33.7 | 37.7 |
| >$55,000 | 47.6 | 43.5 |
| Education level, % | ||
| Less than high school | 6.5 | 4.8 |
| High school and higher | 93.5 | 95.2 |
| CKD status, % | ||
| Stages 1–2 | 22.9 | 12.5 |
| Stage 3 | 48.9 | 53.1 |
| Stages 4–5 | 28.2 | 34.5 |
| Baseline eGFR, ml/min per 1.732, mean (SD) | 46.2 (25.5) | 39.8 (18.6) |
| Urine protein-to-creatinine ratio, mean (SD) | 0.78 (1.85) | 0.83 (1.45) |
| Aware of CKD diagnosis, % | 95.5 | 94.4 |
| Times seen nephrologist in past year, % | ||
| 0–1 | 17.5 | 13.8 |
| 2 | 22.9 | 21.4 |
| 3 | 23.9 | 26.2 |
| 4 | 33.9 | 35.9 |
| Diabetes, % | 38.2 | 100 |
| Hypertension, % | 85.8 | 89.5 |
| Body mass index, kg/m2, mean (SD) | 31.1 (7.8) | 33.9 (8.3) |
| Current smoker, % | 9.0 | 5.5 |
| Perceived knowledge score, median (IQR) | 2.6 (2.1–3.0) | 2.6 (2.1–3.0) |
| Objective knowledge score, median (IQR) | 0.68 (0.57–0.75) | 0.68 (0.57–0.79) |
| Inadequate health literacy, % | 17.7 | 17.9 |
CKD, chronic kidney disease; eGFR, estimated glomerular filtration rate.
Perceived knowledge score range (0–4); objective knowledge score range (0–1).