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Table 2 Cut-off criterion, sensitivity, specificity, AUC and Youden index of ROC curve for CRT model

From: The interaction effects of risk factors for hypertension in adults: a cross-sectional survey in Guilin, China

Parameters ROC curve of CRT model
Cut-off criterion 0.2
Sensitivity % (95 % CI) 84.41 (82.6 ~ 86.1)
Specificity % (95 % CI) 64.54 (63.2 ~ 65.9)
AUC % (95 % CI) 81.6 (80.6 ~ 82.5)*
Youden index % 48.95
  1. Sensitivity, specificity, AUC and Youden index of ROC curve are shown as percentages (%), and numbers in parentheses are 95 % CI
  2. Abbreviations: ROC receiver operating characteristic, CRT classification and regression tree, CI confidence interval, AUC area under the curve
  3. *P < 0.01