Sudden cardiac death (SCD) incidence rates and incidence rate ratios (IRR) for selected age groups
| Age group (years) | Incidence of SCD/100 000 person-years | IRR | 95% CI for IRR | P value | ||
| Total | Female SCD cases | Male SCD cases | ||||
| <35 | 2.90 | 2.00 | 3.77 | 1.89 | 1.14 to 3.12 | 0.01 |
| 35–50 | 27.29 | 11.61 | 42.62 | 3.67 | 2.8 to 4.8 | <0.01 |
| >50 | 325.21 | 278.60 | 376.92 | 1.35 | 1.3 to 1.4 | <0.01 |