Glucose-6-phosphate dehydrogenase in an Afro-American population.

6,366 Afro-American infants were screened for G6PD activity. 379 males (11.4%) and 77 females (2.5%) were deficient. Confirmation was made by a standard spectrophotometric assay. The results for the male infants in this study are comparable to those found in other studies which accurately establish the deficient male.