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Catalytic iron and hepcidin concentrations associate with death across subgroups. Odds ratios for 60-day mortality according to catalytic iron and hepcidin concentrations across subgroups. Catalytic iron and hepcidin concentrations were natural log transformed and standardized to 1 SD. P values refer to the significance of interaction terms testing for effect modification by subgroup. CHF, congestive heart failure; DM, diabetes mellitus; ICU, intensive care unit.
