Table 4.
ERI levels according to Se and iron status
| Variable | Se ≥ 10.5 μg/dl Iron deficiency (−) |
Se < 10.5 μg/dl Iron deficiency (−) |
Se ≥ 10.5 μg/dl Iron deficiency (+) |
Se < 10.5 μg/dl Iron deficiency (+) |
|---|---|---|---|---|
| ERI | 3.4 (2.3–6.9) (Ref) | 9.7 (3.4–16.5)a | 8.8 (4.6–15.5)a | 9.3 (5.6–15.3)b |
| Variable | Se ≥ 10.5 μg/dl TSAT >30% or ferritin > 500 ng/ml |
Se < 10.5 μg/dl TSAT >30% or ferritin > 500 ng/ml |
Se ≥ 10.5 μg/dl TSAT ≤ 30% and ferritin ≤ 500 ng/ml |
Se < 10.5 μg/dl TSAT ≤ 30% and ferritin ≤ 500 ng/ml |
|---|---|---|---|---|
| ERI | 5.1 (3.3–7.3) (Ref) | 7.3 (3.5–12.7) | 8.6 (3.2–14.4) | 10.8 (6.0–21.4)a |
ERI, erythropoiesis resistance index; IQR, interquartile range; Ref, reference; Se, selenium; TSAT, transferrin saturation.
a
P < 0.05 compared with Ref group.
b
P < 0.01 compared with Ref group.