Table 2.

Laboratory value differences among iron deficient and normal patients

Variable*	Iron Deficient	Iron Normal	P value†
ALT (U/L)	58 (36–80)	67 (44–101)	0.0004
AST/ALT	0.81 (0.66–1.0)	0.70 (0.54–0.91)	<0.0001
Direct bilirubin (mg/dL)	0.1 (0.1–0.1)	0.1 (0.1–0.2)	0.0001
Total bilirubin (mg/dL)	0.5 (0.4–0.8)	0.7 (0.5–1.0)	<0.0001
HbA1c (%)	5.8 (5.4–6.4)	5.6 (5.3–6.2)	0.002
Platelets (K/cmm)	259 (204–308)	235 (195–274)	0.0001
Ceruloplasmin (mg/dL)	31 (27–38)	28 (23–35)	0.008
Hemoglobin (g/dL)	13.9 (13.0–14.7)	14.6 (13.7–15.6)	<0.0001
Serum iron (μg/dL)	59 (50–70)	103 (86–123)	<0.0001
Total iron binding capacity (μg/dL)	399 (363–437)	347 (309–389)	<0.0001
Transferrin saturation (iron/TIBC)	0.16 (0.12–0.18)	0.28 (0.24–0.36)	<0.0001
Serum ferritin (ng/mL)	92 (47–155)	219 (103–361)	<0.0001
Interleukin 6	6.6 (4.4–10.3)	4.8 (3.1–7.9)	0.0001
Interleukin 1β	0.45 (0.25–0.83)	0.32 (0.19–0.59)	0.009

^*Values are medians (IQR)

^†P values from Wilcoxon rank sum test.