Cardiac events | Serious hypokalemia K+ < 2.5 mmol/L N = 120 | Moderate hypokalemia 2.5 ≤ K+ < 3 mmol/L N = 382 | Mild hypokalemia 3 ≤ K+ < 3.5 mmol/L N = 1606 | No dyskalemia 3.5 ≤ K+ ≤ 5 mmol/L N = 8537 | Mild hyperkalemia 5 < K+ ≤ 6 mmol/L N = 1036 | Moderate hyperkalemia 6 < K+ ≤ 7 mmol/L N = 306 | Serious hyperkalemia K+ > 7 mmol/L N = 103 | p value* |
---|---|---|---|---|---|---|---|---|
External electric shock | 0 (0) | 6 (1.6) | 8 (0.5) | 71 (0.8) | 13 (1.3) | 0 (0) | 3 (2.9) | 0.01 |
Cardiac arrest | 1 (0.8) | 14 (3.7) | 23 (1.4) | 132 (1.5) | 31 (3) | 13 (4.2) | 6 (5.8) | < 0.01 |
Myocardial infarction | 1 (0.8) | 1 (0.3) | 4 (0.2) | 21 (0.2) | 5 (0.5) | 2 (0.7) | 0 (0) | 0.54 |
Minimal heart rate < 40 bpm | 10 (8.3) | 27 (7.1) | 79 (4.9) | 333 (3.9) | 79 (7.6) | 40 (13.1) | 17 (16.5) | < 0.01 |
Ventricular arrhythmia | 10 (8.3) | 43 (11.3) | 103 (6.4) | 420 (4.9) | 73 (7) | 31 (10.1) | 14 (13.6) | < 0.01 |
Supra-ventricular arrhythmia | 6 (5) | 30 (7.9) | 105 (6.5) | 680 (8) | 109 (10.5) | 31 (10.1) | 7 (6.8) | < 0.01 |
Unspecified arrhythmia | 0 (0) | 1 (0.3) | 8 (0.5) | 35 (0.4) | 4 (0.4) | 1 (0.3) | 0 (0) | 0.96 |
Atrioventricular block | 0 (0) | 0 (0) | 2 (0.1) | 1 (0) | 0 (0) | 0 (0) | 0 (0) | 0.28 |
Total | 20 (16.7) | 87 (22.8) | 267 (16.6) | 1327 (15.5) | 239 (23.1) | 83 (27.1) | 30 (29.1) | < 0.01 |