Table 1 Overview of seroprevalence estimates between October 2020 and March 2021

From: Nationwide increases in anti-SARS-CoV-2 IgG antibodies between October 2020 and March 2021 in the unvaccinated Czech population

Period

SARS-CoV-2 serology test result

Seroprevalence (95% CI) standandardized by age and sex for national population

p value

Total n

Positive n (%)

 

October 2020– November 2020

3626

1025 (28.3%)

27.9% (26.1–29.7)

p < 0.001

December 2020– January 2021

6880

2984 (43.4%)

42.2% (40.8–43.5)

February 2021– March 2021

19,548

10,052 (51.4%)

51.0% (50.3–51.8)

Total

30,054

14,061 (46.8%)

46.4% (45.8–47.0)

  1. CI confidence interval.