G6PD and G6PD deficiency: A higher incidence of haemoglobinuria was observed in participants with G6PD deficiency (adjusting for primaquine administration) compared to participants with normal G6PD status (6/47, 11.3% compared to 7/615, 1.1% in no primaquine arms and 14/88, 15.9% compared to 25/1416, 1.8% in primaquine arms).