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[Preprint]. 2020 Sep 28:rs.3.rs-42927. Originally published 2020 Jul 16. [Version 2] doi: 10.21203/rs.3.rs-42927/v2

Figure 4.

Figure 4

COVID-19 morbidity and mortality vs BCG immunization in ‘old’ countries (A, B) Total COVID-19 cases and deaths per million against BCG immunization rates for high median age (“old”) countries and regions (n=61). r and p are from Pearson’s correlation coefficient analysis. (C, D) Boxplots of total COVID-19 cases and deaths per million ‘old” all countries in the world (n=61), grouped by BCG vaccination rate of either <50% (‘No BCG”) or ≥50% (BCG). P values indicate the levels of difference between the two groups by two-tailed Student’s t-test.