ID, IDA, and Anemia in the 1999–2002 National Health and Nutrition Examination Survey,7 Children 12 to 35 Months of Age
| Population Sampled (No.) . | Proportion of US Toddler Population, % (SE)a . | ID, % (SE) . | IDA, % (SE) . | All Anemia, % (SE) . |
|---|---|---|---|---|
| General US population (672) | 9.2 (1.3) | 2.1 (0.6) | 5.1 (0.8) | |
| Above poverty line (355)b | 66.4 (2.9) | 8.9 (1.7) | 2.2 (0.8)c | 4.6 (1.1) |
| Below poverty line (268)b | 33.6 (2.9) | 8.6 (1.6) | 2.3 (1.2)c | 6.2 (1.3) |
| Enrolled in WIC (360)d | 44.4 (3.2) | 10.7 (2.1) | 3.1 (1.2)c | 6.6 (1.4) |
| Non-Hispanic white (196) | 58.0 (3.8) | 7.3 (1.9) | 2.0 (0.8)c | 4.6 (1.2) |
| Non-Hispanic black (173) | 14.1 (2.1) | 6.6 (1.8) | 1.6 (0.9)c | 8.3 (1.9) |
| Mexican American (231) | 15.0 (2.2) | 13.9 (3.1) | 0.9 (0.7)c | 3.2 (1.2)c |
| Other ethnicity (72) | 13.0 (2.7) | 15.2 (4.7)c | 4.4 (2.7)c | 5.5 (2.7)c |
| Population Sampled (No.) . | Proportion of US Toddler Population, % (SE)a . | ID, % (SE) . | IDA, % (SE) . | All Anemia, % (SE) . |
|---|---|---|---|---|
| General US population (672) | 9.2 (1.3) | 2.1 (0.6) | 5.1 (0.8) | |
| Above poverty line (355)b | 66.4 (2.9) | 8.9 (1.7) | 2.2 (0.8)c | 4.6 (1.1) |
| Below poverty line (268)b | 33.6 (2.9) | 8.6 (1.6) | 2.3 (1.2)c | 6.2 (1.3) |
| Enrolled in WIC (360)d | 44.4 (3.2) | 10.7 (2.1) | 3.1 (1.2)c | 6.6 (1.4) |
| Non-Hispanic white (196) | 58.0 (3.8) | 7.3 (1.9) | 2.0 (0.8)c | 4.6 (1.2) |
| Non-Hispanic black (173) | 14.1 (2.1) | 6.6 (1.8) | 1.6 (0.9)c | 8.3 (1.9) |
| Mexican American (231) | 15.0 (2.2) | 13.9 (3.1) | 0.9 (0.7)c | 3.2 (1.2)c |
| Other ethnicity (72) | 13.0 (2.7) | 15.2 (4.7)c | 4.4 (2.7)c | 5.5 (2.7)c |
Shown are the unweighted number and weighted percentage and SEs for all children with complete data for Hb, SF, transferrin saturation, and zinc protoporphyrin. Anemia was defined as a Hb concentration of <11.0 g/dL; ID7 was defined as an abnormal value for at least 2 of 3 indicators: SF (abnormal cutoff: <10 μg/dL), zinc protoporphyrin (>1.42 μmol/L red blood cells), and transferrin saturation (<10%); and IDA was defined as anemia plus ID.
Proportion of row descriptor of all children in analytic sample (N = 672).
Children with income data (N = 623).
Estimate is statistically unreliable. Relative SE (SE of estimate/estimate × 100) ≥ 30%.
Any member of household who received benefits from WIC in the previous 12 months: children with food-security data (N = 668).