Table 4: Prevalence of iron depletion, IDE, and IDA in preschool Inuit children while disregarding or accounting for the influence of inflammation on SF cutoffs.

Iron statusPrevalence (%)95% CI

Iron depletion
 SF < 15 µg/L regardless of CRP level 5332.725.4, 40.0<0.0001
 SF < 15 or <50 µg/L w/o or w/ inflammation, respectively7546.338.5, 54.0
IDE
 SF < 15 µg/L regardless of CRP level5131.524.2, 38.7<0.0001
 SF < 15 or <50 µg/L w/o or w/ inflammation, respectively7345.137.3, 52.8
IDA
 SF < 15 µg/L regardless of CRP level106.22.4, 9.90.083
 SF < 15 or <50 µg/L w/o or w/ inflammation, respectively138.03.8, 12.2

IDE: iron deficient erythropoiesis; IDA: iron deficiency anemia; SF: serum ferritin; w/o: without, w/: with.
The McNemar test was used to compare differences in the prevalence of iron depletion, IDE, and IDA between the two methods in children with a complete set of traditional indicators of iron status ().
Without () or with concomitant IDE and, in some cases, IDA.
SF cutoffs were adjusted for inflammation using the C-reactive protein (CRP): w/o inflammation: CRP < 5mg/L; w/ inflammation: CRP ≥ 5mg/L.
IDE and IDA as defined in Table 1.