Table 1.

Laboratory values in IDA, ACD and mixed anaemia

	IDA	ACD	Mixed anaemia
Serum ferritin	↓	↑	↑ or ↔
Serum iron	↓	↓	↓
Transferrin	↓	↓ or ↔	↓
Transferrin saturation	↓	↓	↓
TIBC	↑	↓	↑ or ↔
sTfR	↑	↓ or ↔	↑
sTfR–ferritin index	↑	↓	↑
CRP or ESR	↓	↑	↑
Hepcidin	↓	↑	↓ or ↑

↓, decreased; ↑, increased; ↔, unchanged; ACD, anaemia of chronic disease; CRP, C reactive protein; ESR, erythrocyte sedimentation rate; IDA, iron deficiency anaemia; sTfR, soluble transferrin receptor; TIBC, total iron binding capacity.