Relation between iron deficiency (ID) and infants’ background characteristics
| Characteristic | No ID(%) | ID(%) | Total | χ2 | P values |
| Gender | |||||
| Male | 146 (89.6) | 17 (10.4) | 163 | 0.686 | 0.265 |
| Female | 132 (92.3) | 11 (7.7) | 143 | ||
| Nationality | |||||
| Qatari | 57 (98.3) | 1 (1.7) | 58 | 4.748 | 0.029 |
| Non- Qatari | 221 (89.1) | 27 (10.9) | 248 | ||
| Gestational age | |||||
| Preterm (<37 weeks) | 23 (88.5) | 3 (11.5) | 26 | 0.195 | 0.433 |
| Full term (≥37 weeks) | 255 (91.1) | 25 (8.9) | 280 | ||
| Birth weight | |||||
| Low (<2500 grams) | 18 (90) | 2 (10.0) | 20 | 0.019 | 0.565 |
| Normal (≥2500 grams) | 260 (90.9) | 26 (9.1) | 286 | ||
| Mode of child delivery | |||||
| Normal | 183 (91.5) | 17 (8.5) | 200 | 0.294 | 0.364 |
| Caesarean section | 95 (89.6) | 11 (10.4) | 106 | ||
| Twins, triple or multiple birth | |||||
| No | 270 (90.6) | 28 (9.4) | 298 | 0.827 | 0.460 |
| Yes, twins | 8 (100) | 0 (0) | 8 | ||