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Table 4 Sensitivity and specificity for DAP change scores, using perceived change in pain as gold standard

From: Dynamic weight-bearing assessment of pain in knee osteoarthritis: construct validity, responsiveness, and interpretability in a research setting

DAP changea Sensitivity Specificity 1 - Specificity 1-Sensitivity Sum [1-Sens + 1-Spec]
−9.00 0.000 1.000 0.000 1.000 1.000
−6.50 0.027 1.000 0.000 0.973 0.973
−4.50 0.081 1.000 0.000 0.919 0.919
−3.50 0.216 1.000 0.000 0.784 0.784
−2.50 0.351 1.000 0.000 0.649 0.649
−1.50 0.568 1.000 0.000 0.432 0.432
-.50 0.703 0.500 0.500 0.297 0.797
.50 0.892 0.250 0.750 0.108 0.858
1.50 0.946 0.250 0.750 0.054 0.804
3.00 1.000 0.000 1.000 0.000 1.000
  1. total number of participants who perceived improvement (TRANS-Q score 1–7) = 37
  2. total number of participants who perceived no change (TRANS-Q score 0) = 4
  3. The sum of misclassification is used to determine the most appropriate cutoff score (marked with bold letters).
  4. anegative number indicates a decrease in pain