Table 3.
Patient characteristics
| Patient characteristics | Overall n = 25,395 |
|---|---|
| Age (yr) | |
| Mean ± SD | 72.4 ± 13.0 |
| Age group (yr), n (%) | |
| 18–64 | 6160 (24.3) |
| 65–79 | 10,650 (41.9) |
| 80+ | 8585 (33.8) |
| Sex, male, n (%) | 13,978 (55.0) |
| Length of follow-up period (yr) | |
| Mean ± SD | 2.74 ± 1.89 |
| S-K level at index date (mEq/l) | |
| Mean ± SD | 5.4 ± 0.5 |
| S-K level group at index date, n (%) | |
| ≥ 5.1 mEq/l and < 5.5 mEq/l | 18,410 (72.5) |
| ≥ 5.5 mEq/l and < 6.0 mEq/l | 5006 (19.7) |
| ≥ 6.0 mEq/l | 1979 (7.8) |
| CKD, n (%) | 14,322 (56.4) |
| Stage 1 | 170 (1.2) |
| Stage 2 | 1030 (7.2) |
| Stage 3a | 2464 (17.2) |
| Stage 3b | 3704 (25.9) |
| Stage 4 | 4139 (28.9) |
| Stage 5 | 2803 (19.6) |
| DM, n (%) | 12,101 (47.7) |
| HF, n (%) | 8570 (33.7) |
| HTN, n (%) | 16,463 (64.8) |
| 1 class of antihypertensive | 5716 (22.5) |
| 2 classes of antihypertensive | 5777 (22.7) |
| ≥3 classes of antihypertensive | 610 (2.4) |
CKD, chronic kidney disease; DM, diabetes mellitus; HF, heart failure; HTN, hypertension; S-K, serum potassium.