Table 3 Subgroup analyses for the association between dietary diversity and anemia among 0 to 5Â years old children
| Â | Number of effect sizes | WMD (95% CI) | P effect | P within | I2 (%) | P between |
|---|---|---|---|---|---|---|
Continent (Africa vs. Asia) | Â | Â | Â | Â | Â | 0.001 |
 Africa | 16 | 2.13 (1.63, 2.79) |  < 0.001 |  < 0.001 | 83.6% |  |
 Asia | 3 | 1.28 (1.01, 1.62) | 0.004 | 0.234 | 31.2% |  |
Type of anemia |  |  |  |  |  |  < 0.001 |
 Overall anemia | 16 | 2.19 (1.66, 2.86) |  < 0.001 |  < 0.001 | 82.7% |  |
 Iron deficiency anemia | 3 | 1.18 (0.89, 1.25) | 0.65 | 0.42 | 21.3% |  |
Bias |  |  |  |  |  |  < 0.001 |
 Some concerns | 2 | 1.15 (0.86, 1.28) | 0.58 | 0.39 | 25.6% |  |
 High or very high bias | 17 | 2.26 (1.69, 2.89) |  < 0.001 |  < 0.001 | 85.9% |  |