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Table 4 The MCID by Receiver operating characteristic analysis

From: Validity, reliability and interpretability of the Thai version of the urticaria control test (UCT)

Changes in Long Form Thai UCT score Patient’s global assessment of disease control (PatGA-LS) score
Change in score of 1 (minimal responders = 20) Change in score of 2 (marked responders = 9)
Sensitivity (%) Specificity (%) Sensitivity (%) Specificity (%)
1.0 90.0 74.1 100 64.7
2.0 90.0 81.9 100 71.3
3.0 85.0 85.3 88.9 75.0
4.0 70.0 90.5 88.9 81.6
5.0 60.0 94.8 77.8 86.8
6.0 45.0 97.4 77.8 91.2
AUC (95 % CI) 0.86 (0.80-0.98) 0.92 (0.86-0.99)
Changes in Short Form Thai UCT score Patient’s global assessment of disease control (PatGA-LS) score
Change in score of 1 (minimal responders = 20) Change in score of 2 (marked responders = 9)
Sensitivity (%) Specificity (%) Sensitivity (%) Specificity (%)
1.0 80.0 79.3 100 70.6
2.0 75.0 88.8 100 79.4
3.0 60.0 95.7 88.9 87.5
4.0 40.0 97.4 77.8 91.9
5.0 20.0 99.1 77.8 96.3
AUC (95 % CI) 0.84 (0.80-0.97) 0.96 (0.92-0.99)
  1. Abbreviations: MCID minimal clinically important difference, AUC (95 % CI): area under the curve (95 % confidence interval)