TABLE 1. Distribution of the study sample according to socioeconomic and demographic characteristics.

	Study sample		Brazilian population 2019 (%)
	Number	%
Region
North	16 013	17.9	8.8
Northeast	26 809	29.9	27.2
Southeast	21 860	24.5	42.1
South	14 888	16.7	14.3
Center-West	9 792	11.0	7.8
Sex
Male	37 309	41.8	51.7
Female	52 053	58.2	48.3
Age (years) ≤ 9
10 – 19	4 263	4.8	12.9
20 – 39	8 024	9.0	15.3
40 – 59	28 402	31.7	24.8
60+	21 188	23.7	13.7
Color / ethnicity
White	32 383	37.0	45.2
Brown	40 088	45.9	45.1
Black	11 304	12.9	8.9
Asian	2 446	2.8	0.5
Indigenous	1 219	1.4	0.4
Schooling (in years)a
≤ 4	14 128	19.4
5 – 8	13 208	18.2
9 – 11	28 315	39.0
≥ 12	17 013	23.4
Wealth quintiles
Poorest	20 976	23.5
2nd	16 560	18.5
3rd	17 325	19.4
4th	17 262	19.3
Richest	17 230	19.3
Total	89 362b

Source: prepared by authors from the results.

^aSubjects < 20 years were excluded.

^bFor Color/ethnicity, the total does not sum to 89 362 because of missing data (n=1 922), and for wealth quintiles information was missing for 9 subjects. For schooling, information was missing for 4 411 subjects.