Table 1

COVID-9 incidence rates and incidence rate ratios of students and staff, South Korea, February–December 2020

Incidence rate per 100 00095% CIIncidence rate ratio95% CIP value
Kindergartens
 Students3.762.38 to 5.630.230.11 to 0.49<0.001
 Staff16.58.80 to 28.27
Primary schools
 Students3.452.79 to 4.230.280.19 to 0.42<0.001
 Staff12.48.62 to 17.21
Secondary schools
 Students7.656.64 to 8.780.390.29 to 0.53<0.001
 Staff19.6115.07 to 25.09