Table 2.
No. of studies | Pooled CMR per 100 PYFU (95% CI) | I2 (P value) | |
Overall | 42 | 1.65 (1.47, 1.82) | 97% (<0.001) |
HIC | 37 | 1.56 (1.38, 1.74) | 98% (<0.001) |
LMIC | 5 | 2.74 (1.76, 3.72) | 83% (<0.001) |
Western Europe | 27 | 1.42 (1.28, 1.56) | 92% (<0.001) |
Eastern Europe | 1 | 2.20 (1.72, 2.69) | – |
Asia | 4 | 3.16 (2.19, 4.13) | 78% (<0.001) |
Latin America | 1 | 1.14 (0.30, 1.99) | – |
North America | 7 | 1.96 (0.87, 3.05) | 99% (<0.001) |
Australasia | 3 | 0.75 (0.41, 1.09) | 84% (<0.001) |
CI, confidence interval; HIC, high-income country; LMIC, low and middle-income country; PYFU, person-years of follow-up.