Table 1.
Comparison of groups regarding demographic characteristics, complete blood count, serum Fe, ferritin, Fe-binding capacity values, and presence of Fe deficiency and Fe deficiency anemia
| Group 1 (Zn>100 µg/g) (n=322) | Group 2 (Zn<100 µg/g) (n=238) | p | |
|---|---|---|---|
| Gender | |||
| Female/male (n) | 203/119 | 155/83 | 0.612 |
| Female/male (%) | 63/37 | 65.1/34.9 | |
| Age | |||
| Month | 85 (54–120) | 40 (25–58) | <0.001 |
| Hair Zn µg/g | 163.8 (125–211.3) | 61.7 (46.1–83.1) | <0.001 |
| Serum ferritin ng/mL | 18.7 (12–29.3) | 16.2 (9.8–24.9) | 0.007 |
| Serum Fe μg/dL | 65 (41–91.2) | 53.5 (32–83) | <0.001 |
| Total Fe-binding capacity μg/dL | 286 (250–335) | 300 (257–339) | 0.481 |
| Transferrin saturation index % | 22.2 (12.9–34.3) | 17.1 (9.6–29) | 0.001 |
| Presence of Fe deficiency n (%) | 161 (50) | 143 (60.1) | 0.018 |
| Presence of Fe deficiency anemia n (%) | 41 (12.7) | 48 (20.2) | 0.017 |
| RBC ×103/µL | 4.83 (4.6–5.1) | 4.82 (4.59–5.09) | 0.496 |
| PLT ×103/µL | 330 (282–378) | 348 (294–406) | 0.011 |
| Hb g/dL | 12.9 (12–13.7) | 12.3 (11.4–12.9) | <0.001 |
| Hct % | 38.7 (36.7–40.6) | 36.9 (35–38.8) | <0.001 |
| MCV fL | 80.6 (77.4–83.4) | 77.7 (73.8–80.2) | <0.001 |
| MCH Pg | 26.9 (25.5–28) | 25.8 (24.2–26.9) | <0.001 |
| MCHC g/dL | 33.3 (32.5–33.9) | 33 (33.2–33.8) | 0.071 |
| RDW % | 13.3 (12.9–14.1) | 13.8 (13.2–14.9) | <0.001 |
Data are presented as medians (25th–75th percentile)
Fe: iron; Zn: zinc; RBC: red blood cell count; WBC: white blood cell count; PLT: platelet count; Hb: hemoglobin; Hct: hematocrit; MCV: mean corpuscular volume; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; RDW: red cell distribution width