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. 2021 Jan 4;21:4. doi: 10.1186/s12887-020-02459-1

Table 3.

Characteristics of clusters and participants in the intention-to-treat population

Characteristics Intervention arm Control arm Both arm
Number of clusters 50 50 100
Number of children 2659 2674 5333
Mean cluster size (SD) 53.18 (12.13) 53.48 (12.39) 53.33 (12.2)
CoV for cluster size 0.228 0.232 0.229
Childhood ALRI prevalence rate 19.2 19.5 19.3
Cluster-level variance 2.336E-11
Individual-level variance 3.29
Cluster level ICC 7.10E-12