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Table 5 The C-indexes of the nomogram and variables from the logistic regression algorithm in the derivation and validation cohorts

From: A CT-based nomogram for predicting the risk of adenocarcinomas in patients with subsolid nodule according to the 2021 WHO classification

Characteristics

Derivation cohort

Validation cohort

C-index (95% CI)

Sensitivity

Specificity

C-index (95% CI)

Sensitivity

Specificity

Nomogram model

0.867 (0.833-0.901)

0.681

0.927

0.877 (0.836-0.917)

0.683

0.944

Lesion size

0.779 (0.733-0.825)

0.696

0.727

N/A

N/A

N/A

Mean CT value

0.740 (0.688-0.793)

0.700

0.718

N/A

N/A

N/A

Vascular change

0.723 (0.691-0.754)

0.473

0.973

N/A

N/A

N/A

Lobulation

0.734 (0.701-0.767)

0.501

0.964

N/A

N/A

N/A

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Cancer Imaging

ISSN: 1470-7330

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