TABLE 4.

Comparison of vascular density in ONH among the three groups.

	Patients with AD	Patients with MCI	Healthy control subjects	p-value
	Mean ± SD	Mean ± SD	Mean ± SD	AD vs HC	MCI vs HC
OCT-A disk (%)
Whole enface	48.38 ± 2.19	48.65 ± 1.92	48.33 ± 6.99	0.972	0.754
Inside disk	51.48 ± 3.5	50.66 ± 5.14	49.72 ± 4.6	0.106	0.344
Peripapillary	50.71 ± 2.39	50.91 ± 2.33	51.66 ± 2.94	0.123	0.187

Data reported as mean and SD (standard deviation) with p values.