Table 3.
Overall agreement between dipstick proteinuria (equal or greater than 1+), urine albumin-creatinine ratio, and grade of estimated glomerular filtration rates (eGFR).
| eGFR Grade | Urine Dipstick Protein Tests (n = 29,838) | Urine Albumin-Creatinine Ratio Tests (n = 1550) | ||||
|---|---|---|---|---|---|---|
| Negative or Trace | ≥1+ | A1 (<30 mg/g Cr) | A2 (30–300 mg/g Cr) | A3 (>300 mg/g Cr) | ||
| Total | 24,372 (91.6%) | 2236 (8.4%) | 917 (79.7%) | 277 (19.7%) | 7 (0.6%) | |
| MDRD 2006 eGFR | ≤G2 (≥60 mL/min/1.73 m2) | 23,636 (96.8%) | 1932 (86.4%) | 863 (94.1%) | 202 (89.0%) | 6 (85.7%) |
| G3a (45–59 mL/min/1.73 m2) | 640 (2.6%) | 188 (8.4%) | 43 (4.7%) | 20 (8.8%) | 0 (0.0%) | |
| ≥G3b (<45 mL/min/1.73 m2) | 129 (0.5%) | 116 (5.2%) | 11 (1.2%) | 5 (2.2%) | 1 (14.3%) | |
| CKD-EPI 2009 eGFR | ≤G2 (≥60 mL/min/1.73 m2) | 23,755 (97.5%) | 1980 (88.6%) | 874 (95.3%) | 206 (90.7%) | 6 (85.7%) |
| G3a (45–59 mL/min/1.73 m2) | 497 (2.0%) | 140 (6.3%) | 33 (3.6%) | 16 (7.0%) | 0 (0.0%) | |
| ≥G3b (<45 mL/min/1.73 m2) | 120 (0.5%) | 116 (5.2%) | 10 (1.1%) | 5 (2.2%) | 1 (14.3%) | |
| CKD-EPI 2021 eGFR | ≤G2 (≥60 mL/min/1.73 m2) | 23,939 (98.2%) | 2030 (90.8%) | 888 (96.8%) | 214 (94.3%) | 6 (85.7%) |
| G3a (45–59 mL/min/1.73 m2) | 355 (1.5%) | 111 (5.0%) | 23 (2.5%) | 10 (4.4%) | 0 (0.0%) | |
| ≥G3b (<45 mL/min/1.73 m2) | 78 (0.3%) | 95 (4.2%) | 6 (0.7%) | 3 (1.3%) | 1 (14.3%) | |
Abbreviations: Cr, creatinine.