Table 5.

Correlation of IFTA and glomerulosclerosis detection by pathologists and CNN to the eGFRs of patients with DN

Variable	Biopsy		1 Year		2 Years
	R2	P	R2	P	R2	P
V-IFTA (pathologist)	0.45	<0.001	0.47	<0.001	0.39	0.001
A-IFTA (pathologist)	0.41	<0.001	0.42	<0.001	0.43	0.001
C-IFTA (CNN)	0.43	<0.001	0.47	<0.001	0.44	0.001
GS (pathologist)	0.21	<0.001	0.21	0.01	0.07	0.24
GS (CNN)	0.23	<0.001	0.23	0.01	0.06	0.28

R² and P value of the F-statistics of simple linear regression are shown for time of biopsy (biopsy) and 1 year and 2 years after time of biopsy. V-IFTA, visual estimation of IFTA; A-IFTA, annotation-based IFTA; C-IFTA, IFTA assessed by CNN; GS, glomerulosclerosis.