Evidence for a sequential transfer of iron amongst ferritin, transferrin and transferrin receptor during duodenal absorption of iron in rat and human

Table 3 Classification of human subjects according to iron status indicators

	Sex	No	Age (yr)	Hb (g/dL)	PCV	RBC M/cu mm	Serum ferritin (μg/L)
Normal	M	12	36.5 ± 10.6	14.8 ± 0.9	44.5 ± 3.3	5.8 ± 0.7	43 ± 22.1
	F	1	7.2	12.4	36	4.5	71.7
Iron deficient anemia	M	4	24.5 ± 20.9	7.4 ± 2.6	23.3 ± 9.0	4.1 ± 1.7	7.2 ± 4.0
	F	2	20.5	7.3	26.5	3.5	6.5
	M	10	44.3 ± 16.5	11.1 ± 1.64	33.6 ± 5.2	4.5 ± 1.4	75.3 ± 32.2
Anemia	F	4	21 ± 6.6	6.8 ± 3.0	20.8 ± 9.0	2.1 ± 1.2	57.4 ± 13.4
Iron supplements	F
Blood transfusion	M	1	32	9.5	29	4.7	28.6
Iron injection	F	1	32	8.4	27	4.3	101
Oral iron	F	1	20	9.7	30	3	38

Values are mean ± SD. Cut off values for defining deficiency, Hb: Male < 13 g/dL, Female < 12 g/dL, serum ferritin < 12 μg/L.