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. 2021 Jun 10;11:10004. doi: 10.7189/jogh.11.10004

Table 4.

Characteristics of cross-sectional studies (N = 1)

Study No. schools Type of schools Size of schools Non-pharmaceutical interventions
(school) School cluster outbreak
(Yes/ No) Sampling method Provider testing/ self-testing Testing method Follow-up modality Follow-up frequency No. index case Type of Index case Age Gender Participants (N) SARS-CoV-2 positive cases (n) Positivity rate (%)
First update (n = 1)
Stein-Zamir-2020 [18] 1 high school 1352 daily health reports; hygiene; facemasks; social distancing; minimal interaction between classes Yes NA provider testing real- time RT-PCR NA NA 2 pupil <18 NA 1312 178 13 · 57

NA – not available