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Table 8 Odds ratios for reporting intermittent pain in relation to the presence of osteoarthritis by the three different methods.

From: The use of digital photographs for the diagnosis of hand osteoarthritis: the AGES-Reykjavik study

  Percentage reporting pain having OA in the joint Percentage reporting pain without having OA in the joint Odds ratios and 95% CI P value
Right DIP2     
   Photo 29.3 11.6 3.2 (1.6-6.4) 0.001
   Xray 21.5 4.4 5.9 (1.4-25.4) 0.008
   Clinical examination 24.0 10.2 2.8 (1.2-6.2) 0.01
Right PIP3     
   Photo 34.4 13.7 3.3 (1.4-7.6) 0.004
   Xray 27.9 11.7 2.9 (1.4-6.0) 0.003
   Clinical examination 35.7 14.1 3.4 (1.4-8.1) 0.004
Right CMC1     
   Photo 41.7 16.7 3.6 (1.8-7.2) < 0.0001
   Xray 51.6 10.6 9.0 (4.4-18.2) < 0.0001
   Clinical examination 53.4 10.5 9.8 (4.8-20.1) < 0.0001
  1. Calculations for the most commonly affected joints in each joint group are shown. (right DIP2, right PIP3 and right CMC1)