Research Article
Increasing Incidence in Relapsing-Remitting MS and High Rates among Young Women in Finland: A Thirty-Year Follow-Up
Table 1
Age-adjusted incidence of RRMS and PPMS per 105 person-years with 95% CIs and F/M ratios from 1981 to 2010 in ten-year periods.
| Disease course | RRMS | PPMS | Period | Person-years | Number of new cases | Incidence | F/M | Number of new cases | Incidence | F/M | I | 95% CI | I | 95% CI |
| 1981–1990 | 6208067 | 280 | 4.2 | 3.7–4.6 | 1.9 | 80 | 1.2 | 0.9–1.4 | 1.6 | 1991–2000 | 6142661 | 526 | 8.5 | 7.8–9.2 | 2.0 | 72 | 1.2 | 0.9–1.4 | 1.9 | 2001–2010 | 6326284 | 613 | 9.7 | 8.9–10.5 | 2.3 | 46 | 0.7 | 0.5–0.7 | 1.2 |
|
|