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Table 5 The cut-off points calculated using ROC curves and its sensitivity, specificity and AUC

From: Predictors of cervical myelopathy and hydrocephalus in young children with achondroplasia

Predictor Cut-off point Sensitivity (%) Specificity (%) AUC
Cervical myelopathy
FM AP 8.02 mm 92.3 69.2 0.862
Cord constriction ratio 0.25 76.9 80.8 0.821
Hydrocephalus
Posterior indentation Grade 0 87.5 64.9 0.788
Frontal horn width 50.63 mm 75.0 91.2 0.758
  1. ROC Receiver operating characteristics, AUC area under the ROC curve, FM foramen magnum, AP anterior–posterior diameter