Table 2.
Demographic data for the source cohort.
| Characteristics | Total cohort (N=1759) | ICD-10a code N18.4 or N18.5 (n=1102) | Index eGFRb <30 (n=1391) | Index eGFR <30 and 90 days prior eGFR <60 | High-risk advanced CKDc (n=928) | Intermediate-risk advanced CKD (n=480) | Low-risk advanced CKD (n=315) | |
| eGFR, mean (SD) | 26.2 (12.1) | 27.7 (13.7) | 22.0 (6.5) | 22.0 (6.5) | 20.3 (6.6) | 27.4 (5.6) | 42.1 (16.6) | |
| Age (years), mean (SD) | 75.3 (11.1) | 75.5 (10.9) | 75.0 (11.0) | 75.2 (10.8) | 75.3 (11.0) | 75.2 (10.3) | 75.5 (12.2) | |
| Sex (male), n (%) | 1686 (95.8) | 1057 (95.9) | 1334 (95.9) | 1290 (95.8) | 889 (95.8) | 461 (96.0) | 301 (95.6) | |
| Race, n (%) | ||||||||
|
|
Black | 386 (21.9) | 232 (21.1) | 311 (22.4) | 299 (22.2) | 216 (23.3) | 94 (19.6) | 69 (21.9) |
|
|
White | 1192 (67.8) | 758 (68.8) | 936 (67.3) | 911 (67.7) | 616 (66.4) | 339 (70.6) | 212 (67.3) |
|
|
Other or unknown | 181 (10.3) | 112 (10.2) | 144 (10.4) | 136 (10.1) | 96 (10.3) | 47 (9.8) | 34 (10.8) |
| Hispanic ethnicity, n (%) | 35 (2.0) | 23 (2.1) | 31 (2.2) | 30 (2.2) | 23 (2.5) | 9 (1.9) | 2 (0.6) | |
| Rural, n (%) | 751 (42.7) | 475 (43.1) | 574 (41.3) | 558 (41.5) | 378 (40.7) | 200 (41.7) | 154 (48.9) | |
| Married, n (%) | 1087 (61.9) | 661 (60.1) | 875 (63.0) | 846 (63.0) | 574 (62.0) | 311 (64.9) | 179 (57.0) | |
| Service era, n (%) | ||||||||
|
|
Pre-Vietnam | 372 (21.1) | 244 (22.1) | 287 (20.6) | 282 (21.0) | 207 (22.3) | 88 (18.3) | 72 (22.9) |
|
|
Vietnam | 1012 (57.5) | 635 (57.6) | 803 (57.7) | 785 (58.3) | 528 (56.9) | 292 (60.8) | 172 (54.6) |
|
|
Post-Vietnam and other | 375 (21.3) | 223 (20.2) | 301 (21.6) | 279 (20.7) | 193 (20.8) | 100 (20.8) | 71 (22.5) |
| Distance to VAd (station 573), mean (SD) | 126.3 (229.5) | 130.3 (249.0) | 127.9 (231.0) | 126.6 (225.0) | 127.7 (221.2) | 124.3 (231.2) | 129.7 (258.0) | |
aeGFR: estimated glomerular filtration rate (ml·min–1·m–2).
bICD-10: International Classification of Diseases, Tenth Revision.
cCKD: chronic kidney disease.
dVA: Veterans Affairs.