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. 2021 Aug 10;25(4):101604. doi: 10.1016/j.bjid.2021.101604

Table 1.

Prevalence and prevalence ratios of SARS-CoV-2 by sociodemographic characteristics and self-reported COVID-19 compatible symptoms, São Paulo City, Brazil, 2020.

Characteristic Participants
Prevalence
Prevalence ratioa P-valueb
n Weighted % Weighted % 95%CI
Overall 463 100 6.0 3.9–8.3
Sex
 Male 214 46.6 7.4 3.7–11.1 1
 Female 249 53.4 5.0 2.2–7.7 0.6 0.239
Age group (years)
 < 40 195 37.8 8.4 3.9–13.0 1
 40 – 59 155 36.0 5.5 2.1–8.9 0.6 0.190
 ≥ 60 113 26.2 3.5 0.2–6.9 0.4 0.160
Self-reported skin color/racec
 White 302 66.5 3.9 2.0–5.9 1
 Brown and black 130 28.2 11.3 5.7–16.9 2.7 0.007
 Asian and indigenous 27 5.3 6.4 6.0–18.9 1.4 0.679
Schooling (years)
 ≤ 8 50 10.9 10.4 0.7 – 20.1 1
 9 - 15 194 40.3 5.5 2.4–8.6 0.5 0.285
 ≥ 16 219 48.8 5.6 2.0–9.2 0.6 0.325
COVID-19 compatible symptoms
 No 319 70.0 4.0 2.2–5.9
 Yes (any)d 144 30.0 10.9 5.7–16.0 3.0 ≤ 0.001

95%CI: 95% Confidence Interval.

SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2; COVID-19, Coronavirus disease 2019.

a

Adjusted for sex, age group, skin color, schooling, occurrence of symptoms.

b

Survey-adjusted chi-square test (Rao Scott correction).

c

Missing data n = 4

d

Single or multiple symptoms in the past 2 week.