Glucose-6-phosphate dehydrogenase activity levels in white newborn infants.

Objective: To define normal levels of glucose-6-phosphate dehydrogenase (G6PD) activity in a population of North American white newborns.

Study Design: We studied 2 white newborn populations, ≥35 weeks of gestation. In the retrospective study, G6PD activity was measured (on clinical indication) in 242 newborns aged ≤7 days.