Table 2.
Characteristics of patients in registry by stage
| N% | CKD Stage | |||||
|---|---|---|---|---|---|---|
| 3Ad | 3B | 4 | 5 | 5D | Aggregate | |
| Total | 32,962 (54.5) | 17,927 (29.6) | 5579 (9.2) | 1295 (2.1) | 2740 (4.5) | 60,503 |
| Age, years (+/− S.D.) | 73.4 (12.1) | 77.3 (12.1) | 76.5 (13.6) | 69.1 (15.9) | 63.6 (14.9) | |
| ≥80 (%) | 32.3 | 47.1 | 46. 9 | 28.7 | 14.0 | |
| Female Sex | 18,917 (57.4) | 10,483 (58.5) | 3010 (54.0) | 617 (47.6) | 1153 (42.1) | 34,180 (56.5) |
| Ethnicity | ||||||
| White | 28,297 (85.9) | 15,322 (85.5) | 4601 (82.4) | 935 (72.2) | 1539 (56.2) | 50,694 (83.8) |
| African-American | 1066 (3.2) | 709 (4.0) | 310 (5.6) | 143 (11.0) | 590 (21.5) | 2818 (4.7) |
| Hispanic | 999 (3.0) | 499 (2.8) | 184 (3.3) | 52 (4.0) | 226 (8.25) | 1960 (3.2) |
| Othera | 2600 (7.9) | 1397 (7.8) | 484 (8.7) | 165 (12.7) | 385 (14.1) | 5031 (8.3) |
| Kidney Failure Riskb | ||||||
| 2-year risk > 30% | 1 (0) | 5 (0.2) | 106 (12.7) | 69 (69.7) | 116 (85.3) | |
| 5-year risk > 30% | 2 (0) | 37 (1.8) | 331 (39.6) | 96 (97.0) | 134 (98.5) | |
| Comorbiditiesc | ||||||
| Diabetes | 8173 (24.8) | 6331 (35.3) | 2368 (42.4) | 533 (41.2) | 1356 (49.5) | 18,761 (31.0) |
| HTN | 23,717 (72.0) | 14,548 (81.2) | 4624 (82.9) | 993 (76.7) | 2158 (78.8) | 46,040 (76.1) |
| CHF | 3988 (12.1) | 3968 (22.1) | 1733 (31.1) | 289 (22.3) | 877 (32.0) | 10,855 (17.9) |
| CVD | 8723 (26.5) | 6406 (35.7) | 2156 (38.6) | 370 (28.6) | 1100 (40.2) | 18,755 (31.0) |
| COPD | 2736 (8.3) | 1916 (10.7) | 683 (12.2) | 93 (7.2) | 269 (9.8) | 5697 (9.4) |
| Asthma | 3472 (10.5) | 1757 (9.8) | 529 (9.5) | 85 (6.6) | 247 (9.0) | 6090 (10.1) |
| Obesity | 10,054 (30.5) | 5446 (30.4) | 1676 (30.0) | 303 (23.4) | 853 (31.1) | 18,332 (30.3) |
| Payor | ||||||
| Medicare | 23,198 (70.4) | 14,446 (80.6) | 4303 (77.1) | 875 (67.6) | 1959 (71.4) | |
| Medicaid | 1096 (3.3) | 497 (2.8) | 206 (3.7) | 91 (7.0) | 253 (9.2) | |
| Commercial | 4190 (12.7) | 1337 (7.5) | 438 (7.9) | 119 (9.2) | 183 (6.7) | |
| Other/Unknown | 4478 (13.6) | 1647 (9.2) | 632 (11.3) | 210 (16.2) | 349 (12.7) | |
Abbreviations: HTN Hypertension, CHF Congestive heart failure, CVD Cardiovascular disease, including coronary artery disease, peripheral vascular disease and stroke, COPD Chronic obstructive pulmonary disease
aOther includes Asian, Native American, Hawaiian/Pacific Islander, Mixed, and Unknown
bBased Tangri et al. Multinational Assessment of Accuracy of Equations for Predicting Risk of Kidney Failure: A Meta-analysis. JAMA 2016. Patients included based on presence of eGFR and urine protein quantification separated by less than or equal to 1 year (total of 5487 patients). Denominators are as follows (3A 2382, 3B 2034, 4836, 5 99, 5D 136)
cComorbidities identified using ICD-10 codes as well as problem list documentation in the EHR
dIncludes patients with proteinuria of > 300 mg/g creatinine but with normal eGFR