Table 2. Number of observations, estimates, and respective 95% confidence intervals of prevalence for the sociodemographic variables used in the study. Brazil, 2020.

Census situation	n unweighted	n weighted	%		95%CI
Gender
Female	48.047	89.179.594	52.9		52.4–53.5
Male	42.799	79.246.594	47.1		46.5–47.6
Skin color
White	33.133	72.305.966	43.6		42.8–44.3
Black	10.345	19.194.647	11.6		11.2–12.0
Brown	45.994	74.387.145	44.8		44.2–45.5
Census situation
Urban	79.873	144.745.331	85.9		85.5–86.3
Rural	20.973	23.680.858	14.1		13.7–14.5
Education
No instruction	7.658	9.837.918	5.8		5.6–6.1
Elementary	35.785	62.781.916	37.3		36.6–37.9
High school	29.824	62.456.605	37.1		36.5–37.7
Graduate	17.579	33.349.750	19.8		19.1–20.5
Internet access
Yes	69.407	142.853.778	84.8		84.4–85.2
No	21.439	25.572.410	15.2		14.8–15.6
			Mean	SD	95%CI
Average age (years)	90.846	168.426.189	43.3	0.129	43.1–43.6
Monthly income (family)	90.824	168.375.970	1.600	24.276	1.5–1.6