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Table 4 Results of receiver operating curve (ROC) analysis of jugular venous reflux status using the first principal component of the normalized whole brain and gray matter volumes combined

From: Jugular venous reflux and brain parenchyma volumes in elderly patients with mild cognitive impairment and Alzheimer’s disease

Group Area under curve True positives False negatives True negatives False positives Sensitivity Specificity Accuracy Significance p value
Controls 0.538 n.s. n.s. n.s. n.s. n.s. n.s. n.s. 0.401
MCI 0.713 19 5 5 4 79.2% 55.5% 72.7% 0.012
AD 0.794 5 2 8 1 71.4% 88.9% 81.3% 0.007
  1. MCI Mild cognitive impairment, AD Alzheimer’s disease.
  2. n.s. Not significant.