Preoperative model for predicting early recurrence in hepatocellular carcinoma patients using radiomics and deep learning: A multicenter study

Table 3 Comparative analysis of models in internal validation set

Model 1	Model 2	Net reclassification improvement	P value	Integrated discrimination improvement	P value
The tumor-only model	Combined	0.261	0.021	0.493	< 0.0001
The 5 mm peri-tumor model	Combined	0.321	0.002	0.353	< 0.0001
The 10 mm peri-tumor model	Combined	0.292	0	0.166	0.00033
The tumor-peri-tumor 5 mm model	Combined	0.189	0.049	0.166	0.00052
The tumor-peri-tumor 10 mm model	Combined	0.220	0.02	0.231	0.00311

Combined: The model that incorporates features from all regions—tumor, 5 mm, and 10 mm.