Table 1: Comparison of microvascular measurements of the retina in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) and at the University of Wisconsin Department of Ophthalmology (gold standard), n = 25.

	ELSA-Brasil	Gold standard	Difference	P
	Mean (SE)	Mean (SE)	Mean (95% CI)
Central retinal artery equivalent (µm)	138.2 (2.33)	138.0 (2.29)	0.16 (-0.17-0.50)	0.31
Central retinal vein equivalent (µm)	198.3 (4.34)	198.5 (4.33)	-0.21 (-0.56-0.14)	0.22
Arteriole/venule ratio	0.70 (0.013)	0.70 (0.013)	0.0005 (-0.008-0.009)	0.55

P-value of the t test for paired data. SE = standard error; CI = confidence interval.