Table 3.

The correlation between our model and other models

Models	Correlation coefficients a	P value
For training cohort
Our model vs APA model	0.357	< 0.001*
Our model vs RPA model	− 0.064	0.486
Our model vs GPA model	− 0.053	0.564
For external validation cohort
Our model vs APA model	0.398	0.004*
Our model vs RPA model	− 0.100	0.490
Our model vs GPA model	− 0.208	0.148

^aPearson's correlation coefficient. *P < 0.05