Associations of age, sex and education with stroke prevalence (prevalence ratios with 95% CIs), by site and pooled across sites
| Country | Age (per year) | Sex (male vs female) | Education (per level) |
| Cuba | 1.03 (1.01 to 1.05) | 1.43 (1.11 to 1.84) | 0.91 (0.80 to 1.03) |
| Dominican Republic | 1.03 (1.01 to 1.05) | 1.36 (1.01 to 1.83) | 0.98 (0.84 to 1.14) |
| Peru (urban) | 1.01 (0.82 to 1.04) | 1.73 (1.18 to 2.55) | 1.02 (0.82 to 1.26) |
| Peru (rural) | 0.99 (0.93 to 1.05) | 1.82 (0.67 to 5.10) | 0.90 (0.43 to 1.87) |
| Venezuela | 1.02 (1.00 to 1.05) | 1.14 (0.79 to 1.64) | 0.83 (0.66 to 1.03) |
| Mexico (urban) | 1.03 (1.00 to 1.07) | 1.56 (0.98 to 2.47) | 1.01 (0.82 to 1.24) |
| Mexico (rural) | 1.00 (0.97 to 1.03) | 0.94 (0.58 to 1.52) | 1.07 (0.78 to 1.45) |
| China (urban) | 1.04 (1.01 to 1.07) | 1.95 (1.35 to 2.84) | 0.87 (0.76 to 1.01) |
| China (rural) | 0.95 (0.86 to 1.05) | 2.70 (0.96 to 7.57) | 0.68 (0.42 to 1.10) |
| India (urban) | 1.02 (0.95 to 1.09) | 2.01 (0.78 to 5.21) | 1.06 (0.74 to 1.52) |
| India (rural) | 0.96 (0.83 to 1.11) | 0.59 (0.20 to 1.73) | 1.21 (0.64 to 2.30) |
| Pooled estimate | 1.02 (1.01 to 1.03) | 1.32 (1.14 to 1.49) | 0.92 (0.86 to 0.98) |
| χ2 test for heterogeneity | 9.9 (df=10), p=0.46 | 13.0 (df=10), p=0.23 | 7.4 (df=10), p=0.69 |
| Higgins I2 percentage (95% CI) | 0 (0 to 60) | 23 (0 to 62) | 0 (0 to 60) |