Table 5.
Events (%); rate per 10,000 person-years | Absolute rate difference* (per 10,000 person-years) | HR (95% CI) | P value | ||
---|---|---|---|---|---|
Outcomes | Serum potassium 4–4.9 mEq/L (N=169) | Serum potassium <4 mEq/L (N=169) | |||
Mortality | |||||
All-cause | 80 (47%); 1822 | 97 (57%); 2487 | + 665 | 1.53 (1.07–2.19) | 0.020 |
Cardiovascular | 63 (37%); 1435 | 79 (47%); 2026 | + 591 | 1.49 (1.00–2.21) | 0.049 |
Progressive HF | 25 (15%); 569 | 53 (31%); 1359 | + 790 | 2.47 (1.41–4.34) | 0.002 |
Hospitalization | |||||
All-cause | 119 (70%); 5085 | 135 (80%); 7258 | + 2173 | 1.54 (1.11–2.14) | 0.010 |
Cardiovascular | 93 (55%); 3218 | 109 (64%); 4781 | + 1563 | 1.33 (0.94–1.90) | 0.110 |
Worsening HF | 68 (40%); 1960 | 71 (42%); 2383 | + 423 | 1.26 (0.83–1.93) | 0.282 |
Absolute differences in rates of events per 10,000 person-years of follow-up were calculated by subtracting the event rates in the serum potassium 4 to 4.9 mEq/L group from the event rates in the serum potassium <4 mEq/L group.