Table 1.
Characteristics of subjects with CKD and controls
| Characteristic | No CKD | CKD tertile 1 | CKD tertile 2 | CKD tertile 3 |
|---|---|---|---|---|
| n | 60 | 45 | 46 | 46 |
| Age (yr) | 77.0 ± 1.0 | 74.4 ± 1.2 | 78.3 ± 1.0 | 73.4 ± 1.5 |
| Diabetes (%) | 28 | 33 | 26 | 33 |
| Race: African American (%) | 30 | 38 | 20 | 46 |
| eGFR (ml/min per 1.73 m2)a | 90–170 | 53–90 | 40–52 | 6–39 |
| BAC0 (mm/breast) | 26 (12–71) | 22 (12–54) | 33 (13–79) | 31 (14–95) |
| MG interval (yr) | 4.1 ± 0.3 | 2.5 ± 0.1 | 2.7 ± 0.2 | 2.5 ± 0.2 |
| BAC rate (mm/breast/yr) | 3.9 (0.7–8.0) | 3.3 (0.3–6.2) | 4.2 (0.3–10) | 8.1 (2.4–23)b |
Data are expressed as mean ± SE, or median (interquartile range).
BAC, breast arterial calcification; BAC0, baseline breast arterial calcification; CKD, chronic kidney disease; eGFR, estimated glomerular filtration rate; MG, mammogram.
a
eGFR is presented as a range.
b
P = 0.006 by the Kruskal-Wallis test.