Table 2.

The characteristics of retinal microvascular abnormalities of the patients with cSVD.

		Total cSVD Score
	All (n = 263)	0 (n = 42)	1 (n = 62)	2 (n = 69)	3 (n = 53)	4 (n = 37)
Retinal microvascular abnormalities, n (%)
Grade I	56 (21.3)	3 (7.1)	17 (27.4)	26 (37.7)	6 (11.3)	4 (10.8)
Grade II	66 (25.1)	0 (0)	3 (4.8)	14 (20.3)	28 (52.8)	21 (56.8)
Grade III	18 (6.8)	0 (0)	0 (0)	0 (0)	10 (18.9)	8 (21.6)
Grade IV	3 (1.1)	0 (0)	0 (0)	0 (0)	2 (3.8)	1 (2.7)
Median (IQR)	1.0 (0–2.0)	0 (0)	0 (0–1.0)	1.0 (0–1.0)*	2.0 (1.5–2.0)*	2.0 (2–2.5)*

cSVD, cerebral small vessel disease; IQR, interquartile.

^*P < 0.05, compared with group cSVD Score 0.