We appreciate the work of Carraccio et al which confirms our findings that the anemia found in children with lead poisoning results from coexistent iron deficiency. The discrepancy between the two studies concerning the predictive value of blood lead in elevations of erythrocyte protoporphyrin bears further exploration. What is striking, however, is that in both series more than 50% of the variability in erythrocyte protoporphyrin remains unexplained. Now the public health focus is on detecting children with low blood lead levels—before even subtle CNS damage has occurred.
- Copyright © 1988 by the American Academy of Pediatrics