| Iron status category | Cases (n = 187) | Controls (n = 13) | OR* (95% CI) | p Value |
| Functional iron deficiency (%) | 39.6 | 46.2 | 0.7 (0.2 to 2.9) | 0.9 |
| Normal iron (%) | 31.0 | 7.7 | 5.4 (0.8 to 234.6) | 0.1 |
| Iron stores deficiency (%) | 21.9 | 38.5 | 0.5 (0.1 to 1.9) | 0.2 |
| Functional and stores deficiency (%) | 7.5 | 7.7 | 1.0 (0.1 to 44.4) | 0.9 |
*OR = [odds in cases]/[odds in controls].