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Table 3 Evaluation of OPTs of 46 patients: Quotient of right and left condylus-height in %; quotient of right and left ramus-height in %; quotient of right and left mandible-height in %; Also evalutation of asymmetry indices SI1 and SI2 according to Kjellberg et al. [30]

From: TMJ pathomorphology in patients with JIA-radiographic parameters for early diagnosis-

  patients n = 46 Group I n = 36 slightly affected Group II n = 10 severely affected p slighty vs. severely affected
  Total n = 46 Male n = 18 Female n = 28 Total n = 36 Total n = 10  
Age in years 13.6 (3.5) 13.0 (3.8) 14.0 (3.4) 13,4 (3.7) 14.3 (3.0) 0.555
OPT
 Ratio condylus-height in % 90.7 (10.4) 93.6 (6.2) 88.9 (12.2) 93.8 (6.9) 79.6 (13.5) 0.0005
 Ratio ramus-height in % 93.8 (6.9) 95.7 (3.7) 92.6 (8.1) 96.0 (4.0) 85.9 (9.3) 0.0030
 Ratio mandible-height in % 93.7 (6.6) 95.5 (5.1) 92.4 (7.2) 95.6 (4.0) 86.5 (9.0) 0.0002
 Asymmetry index SI1 92.9 (6.6) 94.2 (4.7) 92.1 (7.5) 94.6 (4.4) 87.1 (9.7) 0.0120
 Asymmetry index SI2 90.2 (8.4) 91.6 (6.7) 89.2 (9.4) 92.1 (6.0) 83.1 (11.8) 0.0240
  1. p-value was determined by Mann-Whitney-U-test