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. 2008 Jul 31;9:43. doi: 10.1186/1471-2172-9-43

Table 1.

Demographics of children with JDM in expression profiling study.

Patient No. Age at Onset DAS Skin DAS Weak DAS Total Age at MBx Duration of Untreated Disease (Months) DQA 0301 DQA 0501 TNF Type
Short Disease Duration
1 4.7 4.0 7.0 11.0 4.8 1.1 neg pos GA
2 6.8 7.0 9.0 16.0 6.8 1.1 neg pos GG
3 5.5 4.0 4.0 8.0 5.50 0.6 neg pos GA

Mean 5.6 5.0 6.7 11.7 5.7 0.9
ST. Dev. 1.0 1.7 2.5 4.0 1.1 0.3

Long Disease Duration
4 1.0 6.0 5.5 11.5 3.5 30.6 neg pos GA
5 1.8 6.0 3.0 9.0 2.3 6.1 pos neg GG
6 8.3 9.0 10.0 19.0 8.5 2.1 neg neg GG
7 8.8 5.0 4.0 9.0 9.0 2.6 neg pos GA
8 3.9 6.0 9.0 15.0 5.2 16.1 neg neg GG
9 1.6 7.0 9.0 16.0 2.2 7.7 pos neg GG
10 7.2 8.0 6.0 14.0 7.4 2.2 pos neg GG
11 8.3 4.0 8.0 12.0 8.7 4.9 neg pos AA
12 6.0 7.0 3.0 10.0 7.7 20.6 pos pos GG
13 7.7 6.0 7.0 13.0 8.2 6.4 neg pos GG
14 2.5 3.0 1.0 4.0 3.6 13.6 neg neg GG
15 2.6 7.0 3.0 10.0 11.3 105.6 neg neg GA
16 6.1 7.0 10.0 17.0 6.6 6.6 neg neg GA
17 4.5 6.0 6.0 12.0 5.2 8.5 neg pos GG
18 5.1 6.0 8.0 14.0 10.3 63.5 neg pos AA
19 8.4 6.0 1.0 7.0 8.6 3.2 neg pos GG

Mean 5.1 6.2 5.8 12.0 6.7 18.8
ST. Dev. 2.8 1.4 3.1 3.9 2.9 27.9

DAS: disease activity score; MBx: muscle biopsy; DQA: Major histocompatibility complex, class II, DQ alpha-1; TNF type: Tumor necrosis factor -308 allele.

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