TABLE 1.
Effect size and test of heterogeneity for the basic reproduction number (R 0) by region
| Statistics | Region | Test for Subgroup differences | Overall | ||||
|---|---|---|---|---|---|---|---|
| Africa | Asia | Europe | North America | South America | |||
| Effect Size (95% CI) |
2.40 (0.96, 3.84) |
2.56 (2.19, 2.94) |
2.70 (2.26, 3.13) |
3.69 (1.46, 5.92) |
2.32 (2.07, 2.57) |
3.81 (P value = .43) |
2.69 (2.40, 2.98) |
| I 2 statistic | 99.43% | 99.96% | 99.95% | 99.98% | 0.00% | 99.96% | |
| Cochran's Q statistics | ‐ | ‐ | ‐ | ‐ | ‐ | 1.6×105 | |
| n (sample = 108) | 3 | 49 | 48 | 6 | 2 | 108 | |