Table 5 Pooled estimate of the odds ratio of hematological parameters between case and control groups
Index | Number of evidence | Sample size case | Sample size control | Pooled estimate result | Publication Bias total (Egger test) | Sensitivity analysis result (Yes, No)a | Heterogeneity (I−square), % | ||
|---|---|---|---|---|---|---|---|---|---|
OR (95% CI) | Significant impact of exposure on the index (Yes, No) | β | P-value | ||||||
B12 | 13 | 1573 | 1224 | 2.93(2.28, 3.78) | Yes | 1.53 | 0.528 | No | 16.6 |
Ferritin | 9 | 1144 | 819 | 2.50(1.48, 4.22) | Yes | 3.15 | 0.690 | No | 63.2 |
Folic acid | 8 | 1193 | 817 | 1.51(0.53, 4.29) | No | 5.18 | 0.400 | No | 81.1 |
HB | 9 | 831 | 855 | 2.14(1.38, 3.32) | Yes | 3.32 | 0.396 | No | 53.3 |
Iron | 5 | 459 | 413 | 1.46(0.70, 3.03) | No | 4.57 | 0.136 | No | 66.8 |