G6PD and hyperinsulinemic hypoglycemia, familial, 4: Although, all participants in our survey were apparently healthy (with no self-reported hematological diseases and no sign of severe anemia on the day of blood collection), 40 subjects (13.51%) exhibited < 60% G6PD activity of the AMM cut-off level and were identified under the G6PD deficiency conditions (Table 1).