Table 4.

Diagnostic performance of the joint model, radiomics signature, NIHSS score, and hypertension.

	Training group				Testing group
	All	Rad-score	NHISS	Hypertension	All	Rad-score	NHISS	Hypertension
AUC	0.900	0.863	0.727	0.591	0.885	0.840	0.721	0.590
Sensitivity	0.846	0.769	0.718	0.872	0.778	0.722	0.667	0.833
Specificity	0.931	0.879	0.621	0.310	0.885	0.808	0.808	0.346
Negative predictive value	0.900	0.850	0.766	0.783	0.852	0.808	0.778	0.750
Positive predictive value	0.892	0.811	0.560	0.459	0.824	0.722	0.706	0.469
True positive rate	0.846	0.769	0.718	0.872	0.778	0.722	0.667	0.833
False positive rate	0.069	0.121	0.379	0.690	0.115	0.192	0.192	0.654
True negative rate	0.931	0.879	0.621	0.310	0.885	0.808	0.808	0.346
False negative rate	0.154	0.231	0.282	0.128	0.222	0.278	0.333	0.167
False discovery rate	0.108	0.189	0.440	0.541	0.176	0.278	0.294	0.531
Accuracy	0.897	0.835	0.660	0.536	0.841	0.773	0.750	0.545
Precision	0.892	0.811	0.560	0.459	0.824	0.722	0.706	0.469
Youden index	1.777	1.649	1.339	1.182	1.662	1.530	1.474	1.179