Table 3.
Characteristics of patients, on the basis frequency and type of albuminuria testing within 3 yr
| Characteristic | Group 1: Has Albumin-Creatinine Ratio Test | Group 2: Has Protein-To-Creatinine Ratio Test | Group 3: Has Proteinuria Dipstick Test | Group 4: Has No Albuminuria Test |
| N (%) | 188,048 (19) | 16,130 (2) | 354,627 (36) | 417,494 (43) |
| Age, yr | 71 (10) | 69 (13) | 72 (11) | 72 (11) |
| Female sex (%) | 55 | 48 | 62 | 58 |
| eGFR (ml/min per 1.73 m2) | 46 (11) | 37 (13) | 47 (11) | 47 (11) |
| Median (IQR) ACR/PCR/dipstick level, (mg/g, mg/g, category) | 21 (8–79) | 210 (100–670) | Negative | NA |
| Diabetes | 75.5% | 33.8% | 20.1% | 21.2% |
| Hypertension | 84.7% | 79.0% | 71.3% | 63.8% |
| ESKD events (N) | 8972 | 2045 | 7976 | 10,660 |
| ESKD incidence, events per 1000 person-yr, 95% CI | 10.49 (10.27–10.71) | 31.95 (30.60–33.37) | 5.31 (5.19–5.42) | 5.98 (5.87–6.09) |
| Death incidence, events per 1000 person-yr, 95% CI | 60.55 (60.03–61.08) | 80.47 (78.35–82.65) | 74.93 (74.50–75.38) | 68.32 (67.94–68.71) |
Group 1, available ACR test. Group 2, available PCR, but no available ACR. Group 3, available urine dipstick protein level measurement, but no available ACR or PCR. Group 4, no form of albuminuria measured. 95% CI, 95% confidence interval IQR, interquartile range; ACR, albumin-creatinine ratio; PCR, protein-to-creatinine ratio.