TABLE 5.

Comparison the AUCs among different prediction models (P-value).

Training set
Training sets	FLAIR	ADC + FLAIR	Clin	Clin + Con MRI	All (combined model)
ADC	0.458	0.190	0.795	0.877	<0.001*
FLAIR	–	0.041*	0.477	0.523	<0.001*
ADC + FLAIR	–	–	0.732	0.621	0.001*
Clin	–	–	–	0.555	0.003*
Clin + Con MRI	–	–	–	–	0.001*
Validation Set
Validation sets	FLAIR	ADC + FLAIR	Clin	Clin + Con MRI	All (combined model)
ADC	0.210	0.609	0.693	0.586	0.221
FLAIR	–	0.036*	0.532	0.616	0.011*
ADC + FLAIR	–	–	0.471	0.393	0.446
Clin	–	–	–	0.323	0.031*
Clin + Con MRI	–	–	–	–	0.021*

All indicates all factors, including clinical and conventional MRI factors and radiomics features. AUC, area under the curves; ADC, apparent diffusion coefficient; Clin, clinical variables; Con MRI, conventional MRI factors; FLAIR, fluid-attenuated inversion recovery. *P < 0.05.