Learning and behavioral correlates in learning-disabled pupils prone to heterozygous thalassemia and sicklemia

The pilot study was designed to vindicate planning for large-scale detection and management of two parallel genetic blood disorders occurring in large numbers of Mediterranean- and black Americans; the heterozygous minor traits of thalassemia (Cooley's anemia) and sicklemia (sickle-cell anemia). Referred pupils (N=191) matched on schools, age, and learning difficulties associated with learning disabilities were compared as to presumed ethnic origin (n Mediterranean = 80; n black = 64; n "others" = 47) and incidence of trait-related learning and behavioral characteristics. Group mean differences on the study's criteria were found to be significant. Both minor-trait prone groups equally indicated the associative effects, while the control group without tradt-predisposition showed a nonsignificant relationship, thus supporting the hypotheses and the need for large-scale research.