Standardized incidence ratios according to follow-up time: a longer follow-up shows further increase of risk of cardiovascular disease
Event . | SIR, all patients, with median follow-up of 8.4 y . | SIR, patients with at least 3 y of follow-up . | SIR, patients with at least 5 y of follow-up . |
|---|---|---|---|
| Chronic heart failure | 5.4 (4.1-6.9) | 6.2 (4.9-7.9) | 7.3 (5.9-12.1) |
| Myocardial infarction | 1.2 (0.8-1.8) | 1.5 (0.8-2.6) | 1.6 (1.2-6.9) |
| Stroke | 1.8 (1.1-2.4) | 2.1 (1.4-6.1) | 2.5 (1.6-7.9) |
Event . | SIR, all patients, with median follow-up of 8.4 y . | SIR, patients with at least 3 y of follow-up . | SIR, patients with at least 5 y of follow-up . |
|---|---|---|---|
| Chronic heart failure | 5.4 (4.1-6.9) | 6.2 (4.9-7.9) | 7.3 (5.9-12.1) |
| Myocardial infarction | 1.2 (0.8-1.8) | 1.5 (0.8-2.6) | 1.6 (1.2-6.9) |
| Stroke | 1.8 (1.1-2.4) | 2.1 (1.4-6.1) | 2.5 (1.6-7.9) |
For all patients with median follow-up of 8.4 y, n = 476 for myocardial infarction (1980-2000) and 441 chronic heart failure and stroke (1985-2000). Data are standardized incidence ratios (95% CI). For patients with at least 3 y of follow-up, n = 305. For patients with at least 5 y of follow-up, n = 240.