Table 2:
Incidence* of Tumefactive Multiple Sclerosis in Olmsted County, 1998–2018
| Stratum (age-group) | Females | Males | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Population** | Cases | Rate | Population | Cases | Rate | Population | Cases | Rate | |
| 0–19 | 420701 | 0 | 0 | 438792 | 1 | 0.22 | 859493 | 1 | 0.11 |
| 20–29 | 249032 | 2 | 0.80 | 208663 | 4 | 1.92 | 457695 | 6 | 1.31 |
| 30–39 | 226080 | 2 | 0.88 | 211740 | 1 | 0.47 | 437820 | 3 | 0.68 |
| 40–49 | 214948 | 2 | 0.93 | 199986 | 2 | 1.00 | 414934 | 4 | 0.96 |
| 50–59 | 196611 | 1 | 0.50 | 177519 | 0 | 0.00 | 374130 | 1 | 0.26 |
| 60–70 | 141005 | 0 | 0.00 | 125513 | 1 | 0.80 | 266518 | 1 | 0.37 |
| Total | 1027676 | 7 | 0.68 | 923421 | 8 | 0.87 | 1951097 | 15 | 0.77 |
| Adjusted Rates *** | Age adjusted Incidence rate: 0.46 S.E.: 0.17 95% CI: [0.12–0.81] |
Age adjusted Incidence rate: 0.66 S.E.: 0.22 95% CI: [0.23–1.02] |
Age adjusted Incidence rate: 0.56 S.E.: 0.14 95% CI: [0.28–0.83] Age and sex adjusted rate: 0.57 SE: 0.14 95% CI: [0.28–0.84] |
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*
Incidence rate per 100,000 population.
**
Population expressed as person-years from 1998–2018
***
Rates are adjusted to the 2010 US total population.
CI: Confidence Interval; S.E.: Standard Error