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Table 3 Performance analysis for the Lung-RADS and ANN models (n = 234)

From: Artificial neural networks improve LDCT lung cancer screening: a comparative validation study

Scale/model

Lung-RADS

ANN

Cut-off

Category 3

> 0.012

AUC (95% CI)

0.764 (0.705, 0.817)

0.873 (0.823, 0.913)

Classification accuracy (%)

93.16

84.62

Sensitivity (95% CI)

12.50 (0.3, 52.7)

75.00 (34.9, 96.8)

Specificity (95% CI)

96.02 (92.6, 98.2)

84.96 (79.6, 89.4)

PPV (95% CI)

10.0 (1.6, 43.7)

15.0 (9.6, 22.6)

NPV (95% CI)

96.9 (96.0, 97.6)

99.0 (96.7, 99.7)

LR+ (95% CI)

3.14 (0.5, 21.9)

4.99 (3.0, 8.3)

LR- (95% CI)

0.91 (0.7, 1.2)

0.29 (0.1, 1.0)

  1. AUC area under the curve; CI confidence interval; LR+ positive likelihood ratio; LR− negative likelihood ratio; NPV negative predictive value; PPV positive predictive value