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Fig. 2 | Critical Care

Fig. 2

From: Iron deficiency diagnosed using hepcidin on critical care discharge is an independent risk factor for death and poor quality of life at one year: an observational prospective study on 1161 patients

Fig. 2

Relationship between hepcidin and ferritin (a) or soluble transferrin receptor (sTfR)/log(ferritin) (b). We identified positive correlation between log(hepcidin) and ferritin (a) (Pearson’s correlation coefficient [95% CI], 0.59 [0.55–0.62]) and negative correlation with sTfR/log(ferritin) (b). The concordance for iron deficiency (ID) diagnosis according to hepcidin and ferritin (a) was 67%, 95% CI 65–70% (i.e. the proportion of patients with hepcidin < 20 ng/l and ferritin < 100 ng/l or hepcidin > 20 ng/l and ferritin > 100 ng/l) and for sTfR/log(ferritin) (b) it was 71%, 95% CI 68–73%. Grey areas indicate the concordance between the different markers. Lower right (a) and left (b) panels indicate ID according to hepcidin that was not diagnosed according to ferritin (a) or sTfR/log(ferritin) (b). CRP, C-reactive protein

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Critical Care

ISSN: 1364-8535