TABLE 3

Iron Deficiency Follow-Up Testing Statistics

Screening Tests (No. of Infants With Initial Positive Screening Results)No. of Patients “Cured”aProportion of Rescreened Cohort,b %Proportion of Initially Positive Cohort,c %
Simple screens
    Hemoglobin level of <11 g/dL (715)4443.16.2
    Hemoglobin level of <10.5 g/dL (275)3251.611.6
    Hematocrit level of <33% (722)4946.76.8
Other screens
    MCV of <70 μm3 and RDW of >14% (180)825.84.4
    MCV of <70 μm3 and RDW of >14.5% (156)728.04.5
    MCV of <70 μm3, RDW of >14.5%, and Mentzer index of >13 (75)440.05.3
    MCV of <70 μm3 and hematocrit level of <11% (118)729.25.9
    MCV of <70 μm3 and hematocrit level of <10.5% (74)637.58.1
    MCV of <70 μm3 and hematocrit level of <33% (80)735.08.8
  • a Infants who, in subsequent screening, no longer met their original screening criteria.

  • b Percentage of rescreened infants who exhibited correction.

  • c Percentage of infants who initially screened positive for iron deficiency.