Region or country income level | OR (95% CI) | P value |
---|---|---|
Africa | 3.50 (2.76–4.43) | <0.0001 |
Americas | 2.74 (1.80–4.18) | <0.0001 |
Asia | 3.75 (2.74–5.14) | <0.0001 |
Europe | 2.67 (0.75–9.52) | 0.1293 |
Low-income countries | 3.52 (2.74–4.54) | <0.0001 |
Middle-income countries | 3.24 (2.40–4.35) | <0.0001 |