Table 3. The thickness of glomerular capillary walls (μm) in MN cases with and without FSGS lesion.

Stage of MN		MN with FSGS lesion (μm)	MN without FSGS lesion (μm)	P
I	(n = 4)	0.75 ± 0.34	0.61 ± 0.30	0.2
II	(n = 10)	1.33 ± 0.54	0.84 ± 0.30	0.001
III	(n = 7)	1.68 ± 0.69	0.98 ± 0.39	< 0.001
IV	(n = 5)	1.80 ± 0.70	1.39 ± 0.58	0.05
Total	(n = 26)	1.48 ± 0.70	1.02 ± 0.48	< 0.001

The thickness of glomerular capillary walls was measured in electron microscopic photographs.

The thickness of glomerular capillary walls was defined as capillary walls between the bottom of podocytes and the bottom of endothelial cells, including thesubepithelial deposits, glomerular basement membrane, and subendothelial space with extracellular matrix accumulation.