Table 5. Pathological characteristics of IgAN patients with CKD stage G3a and G3b.

Characteristics	stage G3a (n = 209)	stage G3b (n = 181)	P value
Total crescents (%)	7.69 (0.00, 18.75)	5.41 (0.00, 20.69)	0.945
Cellular crescents (%)	0.00 (0.00, 0.00)	0.00 (0.00, 3.45)	0.317
Fibrocellular crescents (%)	0.00 (0.00, 7.69)	0.00 (0.00, 8.70)	0.626
Fibrous crescents (%)	0.00 (0.00, 5.56)	0.00 (0.00, 4.35)	0.752
Segmental glomerulosclerosis or adhesion (%)	5.00 (0.00, 12.50)	5.88 (0.00, 14.29)	0.382
Ischemic glomerulosclerosis (%)	9.52 (0.00, 30.77)	17.39 (0.00, 40.00)	0.012*
Proliferative glomerulosclerosis (%)	0.00 (0.00, 9.09)	0.00 (0.00, 12.90)	0.133
The grade of tubular lesions (0/1/2/3, %)	(3.33%, 46.19%, 35.71%, 14.76%)	(0.56%, 28.33%, 40.00%, 31.11%)	< 0.001*
The grade of mesangial proliferative (1/2/3,%)	(89.05%, 8.10%, 2.86%)	(83.89%, 13.89%, 2.22%)	0.044*
The grade of interstitial lesions (0/1/2/3, %)	(3.33%, 32.38%, 36.67%, 27.62%)	(1.11%, 13.89%, 41.11%, 43.89%)	< 0.001*

*P<0.05.

Abbreviations: IgAN, IgA nephropathy; CKD, chronic kidney disease.