ACD	anemia of chronic inflammation
AID	absolute iron deficiency
AUC	area under curve
CD	Crohn’s disease
CRP	C-reactive protein
ESR	Erythrocyte sedimentation rate
FID	functional iron deficiency
Hb	hemoglobin
hsCRP	high-sensitivity C-reactive protein
%HYPO	hypochromic red blood cells
IBD	inflammatory bowel disease
ID	iron deficiency
IDA	iron deficiency anemia
IRE	iron-restricted erythropoiesis
IV	intravenous
MCHC	mean corpuscular hemoglobin concentration
MCV	mean corpuscular volume
ROC	receiver operator characteristic
SD	standard deviation
SF	serum ferritin
sTfR	soluble transferrin receptor
TSAT	transferrin saturation
UC	ulcerative colitis
ZnPP	zinc protoporphyrin