Table 2.
Annual incidence and prevalence rates of antiphospholipid syndrome in Olmsted County, 2000-2015, according to Sydney criteria or expanded case definition. CI; Confidence interval.
| Sydney Criteria cohort | Expanded cohort | |||
|---|---|---|---|---|
| Incidence | No. of Cases | Incidence rate (95% CI) |
No of Cases | Incidence rate (95% CI) |
| Females by age group | ||||
| 18-44 | 6 | 1.4 | 6 | 1.4 |
| 45-54 | 3 | 1.8 | 3 | 1.8 |
| 55-64 | 2 | 1.7 | 2 | 1.7 |
| 65-74 | 1 | 1.3 | 1 | 1.3 |
| >75 | 6 | 7.7 | 8 | 10.2 |
| Totala | 18 | 2.1 (1.1 – 3.1) | 20 | 2.4 (1.3 – 3.4) |
| Males by age group | ||||
| 18-44 | 7 | 1.7 | 8 | 2.0 |
| 45-54 | 1 | 0.6 | 1 | 0.6 |
| 55-64 | 6 | 5.4 | 8 | 7.3 |
| 65-74 | 0 | 0.0 | 1 | 1.5 |
| >75 | 1 | 2.0 | 2 | 4.0 |
| Totala | 15 | 2.0 (1.0 - 3.0) | 20 | 2.7 (1.5 – 3.9) |
| Overall by age group | ||||
| 18-44 | 13 | 1.6 | 14 | 1.7 |
| 45-54 | 4 | 1.2 | 4 | 1.2 |
| 55-64 | 8 | 3.5 | 10 | 4.4 |
| 65-74 | 1 | 0.7 | 2 | 1.4 |
| >75 | 7 | 5.5 | 10 | 7.8 |
| Totalb | 33 | 2.1 (1.4 – 2.8) | 40 | 2.6 (1.8 – 3.4) |
a
Age-adjusted to the 2010 US white population
b
Age- and sex-adjusted to the 2010 US white population.
CI: Confidence interval