Table 2.
CKD stage and level of albuminuria (A)
| CKD | n | Normoalbuminuria | Microalbuminuria | Macroalbuminuria |
|---|---|---|---|---|
| Total | 24,151 (100%) | 51% | 39% | 10% |
| Stage 1 | 3,132 (13%) | 56% | 36% | 8.4% |
| Stage 2 | 5,855 (24%) | 56% | 36% | 8.5% |
| Stage 3 | 2,428 (10%) | 41% | 47% | 12% |
| Stage 4 | 141 (0.6%) | 26% | 48% | 26% |
| Stage 5 | 17 (0.07%) | 29% | 47% | 24% |
| Unknown | 12,578 (58%) | 51% | 39% | 10% |
CKD stage was classified according to MDRD and NKF criteria. Total includes even those patients in whom measures of kidney function were not obtained (categorized as Unknown). In a total of 11,573 patients, data to calculate kidney function were available.