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Table 2 Characteristics of patients in registry by stage

From: Development of an electronic health record-based chronic kidney disease registry to promote population health management

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)  
  1. Abbreviations: HTN Hypertension, CHF Congestive heart failure, CVD Cardiovascular disease, including coronary artery disease, peripheral vascular disease and stroke, COPD Chronic obstructive pulmonary disease
  2. aOther includes Asian, Native American, Hawaiian/Pacific Islander, Mixed, and Unknown
  3. 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)
  4. cComorbidities identified using ICD-10 codes as well as problem list documentation in the EHR
  5. dIncludes patients with proteinuria of > 300 mg/g creatinine but with normal eGFR