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Age- and Sex-Adjusted Incidence of Dermatomyositis per 1,000,000 Persons in Olmsted County, Minnesota, 1976-2007
| Calendar Decade | No. of Cases | Incidence (95% CI) |
|---|---|---|
| 1976-1985 | 3 | 4.4 (0-9.4) |
| 1986-1995 | 9 | 9.4 (3.2-15.7) |
| 1996-2007 |
17 |
12.5 (6.5-18.5) |
| Overall | 29 | 9.6 (6.1-13.2) |
Abbreviation: CI, confidence interval.
