Table 2 Disease duration in years. Average, minimal and maximal disease duration in years at 43 of 46 JIA patients with parameter severely and slightly affected condyles. Standard deviation and Median are shown (SD = Standard deviation). The exact time of diagnosis could not be noted for three patients, so the disease duration could not be determied for these patients. Classification was carried out according to Billiau et al. [1]
From: TMJ pathomorphology in patients with JIA-radiographic parameters for early diagnosis-
patients n = 43* | Group I n = 33 slightly affected | Group II n = 10 severely affected |  | |||
|---|---|---|---|---|---|---|
|  | Total n = 43 | Male n = 16 | Female n = 27 | Total n = 33 | Total n = 10 | p slighty vs. severely affected |
Age (Years) SD | 13.7 | 13.4 | 13.9 | 13.6 | 14.3 | 0.640 |
3.5 | 3.8 | 3.4 | 3.7 | 3.0 | ||
Disease duration in years | Â | p slighty vs. severely affected | ||||
 Ø disease duration in years  SD  Median | 5.6 | 6.1 | 5.3 | 4.6 | 8.9 |  |
5.1 | 5.4 | 5.0 | 4.7 | 5.2 | 0,031 | |
4.6 | 4.2 | 4.6 | 2.5 | 9.0 | Â | |
 Minimal disease duration in years | 0.2 | 0.3 | 0.2 | 0.2 | 0.2 |  |
 Maximal disease duration in years | 17.4 | 17.4 | 17.2 | 17.4 | 17.2 | |