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Demographic and clinical characteristics of the 61 children with juvenile dermatomyositis*
| Sex | |
| Male | 12 (20) |
| Female | 49 (80) |
| Race | |
| White | 49 (80) |
| Nonwhite | 12 (20) |
| TNFα −308 promoter gene | |
| AA/GA | 20 (33) |
| GG | 41 (67) |
| DQA1*0501 allele† | |
| Negative | 30 (50) |
| Positive | 30 (50) |
| Disease course over 36 months | |
| Non-unicyclic | 36 (59) |
| Unicyclic | 25 (41) |
Values are the number (%).
TNFα = tumor necrosis factor α.
Not tested in 1 patient.
