In G6PD-deficienct males, the average G6PD activities were 17.26°±°11.7 (3–76) IU/ml.RBC among neonatal jaundice patients and 11.8°±°8.9 (3–25) IU/ml.RBC among acute hemolytic patients. The gene discussed is G6PD; the disease is neonatal jaundice.