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Table 3 Optimized number of pruned rules ( r opt ( C , S )) a and assessment of training results

From: Identification of rheumatoid arthritis and osteoarthritis patients by transcriptome-based rule set generation

Study group S ‘Jena_all’ ‘Jena’ ‘Berlin’ ‘Leipzig’ ‘Total’
Figure 1 2 3 4 5
Number of rules for ‘CG’ 7 9 8 0 21
Number of rules for ‘OA’ 7 10 4 4 9
Number of rules for ‘RA’ 7 10 8 4 15
Sensitivity for RA (%) 100 100 100 100 97
Sensitivity for OA (%) 90 100 100 100 100
Specificity for RA (%) 100 100 100 100 100
Specificity for OA (%) 100 100 100 100 96.2
Overall specificity (RA + OA) (%) 100 100 100 n.a. 95
Accuracy (%) 97 100 100 100 97.5
  1. CG, control group; n.a., not applicable; OA, osteoarthritis; RA, rheumatoid arthritis. aSee Additional file 3.