Population screening for glucose-6-phosphate dehydrogenase deficiency on the Baleares.

Two thousand people on the Isles of the Baleares were screened for glucose-6-phosphate dehydrogenase deficiency using a commercially available kit. Among the thousand males tested, five were found deficient; of the thousand women, one had low enzyme activity according to this test. Diagnosis of glucose-6-phosphate dehydrogenase deficiency could be verified using hair follicle analysis on mailed hair samples. The same technique also allowed heterozygotes to be identified unequivocally.