Table 2.

Correlation between diabetic retinopathy grades and renal lesions

	RPS Diabetic Nephropathy Classification	IFTA	Interstitial inflammation	Arteriolar hyalinosis	Arteriosclerosis	Diffuse lesion	Exudative lesion	Subendothelial space widening	Mesangiolysis/microaneurysm	Perihilar neovascularization
r	0.40***	0.41***	0.30***	0.32***	0.13*	0.48***	0.35***	0.27**	0.33***	0.25**

Spearman’s correlation coefficients (r) between the International Clinical Diabetic Retinopathy Disease Severity Scale and renal lesions were obtained using Spearman’s correlation rank test.

*P<0.05, **P<0.01, ***P<0.001.

IFTA, interstitial fibrosis and tubular atrophy; RPS, Renal Pathology Society.