Table 1 Distribution of the study sample and prevalence of positive antibodies for SARS-CoV-2, according to sociodemographic characteristics and region.
From: High prevalence of symptoms among Brazilian subjects with antibodies against SARS-CoV-2
Sample distribution | % of positive tests | ||
|---|---|---|---|
Number | % | ||
Region | |||
Northeast | 9982 | 31.3% | 6.2% |
North | 5180 | 16.3% | 4.1% |
Central-West | 3603 | 11.3% | 0.9% |
Southeast | 8021 | 25.1% | 0.4% |
South | 5083 | 16.0% | 0.7% |
Sex | |||
Female | 18,646 | 58.5% | 2.7% |
Male | 13,223 | 41.5% | 2.6% |
Age (years) | |||
0–4 | 637 | 2.0% | 4.6% |
5–9 | 862 | 2.7% | 2.7% |
10–19 | 2789 | 8.8% | 1.9% |
20–29 | 4965 | 15.6% | 2.4% |
30–39 | 4999 | 15.7% | 3.0% |
40–49 | 5078 | 15.9% | 2.8% |
50–59 | 5032 | 15.8% | 3.0% |
60–69 | 4234 | 13.3% | 2.6% |
70 + | 3273 | 10.3% | 2.1% |
Color/ethnicity | |||
White | 11,442 | 36.7% | 1.3% |
Brown | 14,131 | 45.4% | 3.5% |
Black | 4264 | 13.7% | 2.9% |
Asian | 897 | 2.9% | 3.0% |
Indigenous | 429 | 1.4% | 6.3% |
Schooling | |||
Primary or less | 11,417 | 39.3% | 2.8% |
Secondary | 11,363 | 39.1% | 2.8% |
University or higher | 6275 | 21.6% | 1.4% |
Wealth quintiles | |||
Poorest | 7668 | 24.1% | 3.3% |
2nd | 5809 | 18.2% | 3.3% |
3rd | 6334 | 19.9% | 2.8% |
4th | 6214 | 19.5% | 2.4% |
Richest | 5844 | 18.3% | 1.4% |
