Hepcidin and iron parameters at cohort enrollment in HIV-infected patients with (cases) or without (controls) incident TB.

Data depicted are median with interquartile range (IQR). TB, tuberculosis; TIBC, total iron binding capacity; sTfR, soluble transferrin receptor; MCV, mean cell volume; MCH, mean cell hemoglobin. Numbers of samples available in each group is shown in superscript after the IQR if less than total number. aCases group: HIV-infected patients diagnosed with tuberculosis (TB) more than 1 month after initial visit. Matched controls: HIV-infected patients without diagnosis of TB before or after initial visit, matched for age, gender and CD4 cell count to cases group. Unmatched controls: HIV-infected patients without diagnosis of TB before or after initial visit not matched for age, gender and CD4 cell count to cases group. P values were determined for b difference between matched controls and cases by using the Wilcoxon signed-rank test and c between unmatched controls and cases and d matched and unmatched controls by using the Mann-Whitney test.