In contrast to the results for the whole sample, in patients with low inflammatory activity, i.e., CRP-levels below the median (24.1 mg/l), the combined use of standard parameters of iron deficiency resulted in a higher sensitivity compared both to the use of sTfR alone (76.2 versus 66.7%) and to the combination of standard parameters with sTfR (76.2% versus 57.1%; Table 3). Here, TFRC is linked to nutritional disorder.