Table 2. Comparison of proportions of retinal microvascular abnormalities between cases with disabling dementia and controls at baseline.

	Case	Control	P-value
	(N = 351)	(N = 702)
Generalized arteriolar narrowing, %	23.1 (2.1)	15.7 (1.4)	0.003
Focal arteriolar narrowing, %	7.7 (1.4)	7.5 (1.0)	0.935
Arteriovenous nicking, %	15.7 (1.8)	11.8 (1.3)	0.081
Increased arteriolar wall reflex, %	10.5 (1.6)	9.3 (1.1)	0.508
Any other retinopathy, %	11.4 (1.6)	9.8 (1.2)	0.432
Hemorrhages, %	7.1 (1.3)	6.6 (0.9)	0.728
Microaneurysms, %	2.6 (0.7)	1.4 (0.5)	0.191
Exudates, %	2.8 (0.9)	2.6 (0.6)	0.787
New vessels, %	1.1 (0.5)	0.9 (0.4)	0.654
Laser photocoagulation scars, %	0.9 (0.5)	1.0 (0.4)	0.822
Total number of retinal abnormalities
1 finding, %	26.8 (2.3)	22.8 (1.6)	0.154
≥ 2 findings, %	18.2 (1.9)	13.4 (1.3)	0.038

In parentheses, standard error; Optic disc swelling, which is one of any other retinopathy, was not observed in this study population.