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Table 3 Performance of the logistic regression models when inputting CDU-based features, clinical features, or a combination of both. Reported values are median [IQR]

From: Exploring the predictive value of carotid Doppler ultrasound and clinical features for spinal anesthesia-induced hypotension: a prospective observational study

 

CDU-based features

Clinical features

CDU-based and clinical features

Sensitivity (%)

100 [46 – 100]

67 [25 – 81]

75 [63 – 81]

Specificity (%)

0 [0 – 34]

80 [58 – 100]

75 [71 – 81]

AUROC

0.50 [0.50 – 0.51]

0.81 [0.81 – 0.89]

0.81 [0.75 – 0.95]

PPV (%)

40 [36 – 50]

75 [58 – 100]

75 [65 – 81]

NPV (%)

0 [0 – 40]

67 [57 – 81]

75 [71 – 88]

F1 score

0.55 [0.42 – 0.67]

0.57 [0.40 – 0.71]

0.75 [0.71 – 0.76]

  1. AUROC area under the receiver operating characteristic curve, CDU carotid Doppler ultrasound, NPV negative predictive value, PPV positive predictive value
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Perioperative Medicine

ISSN: 2047-0525