Glucose-6-phosphate dehydrogenase deficiency among three national minorities in Hainan Island, China.

A total of 296 healthy males belonging to three national minority groups, Li, Miao and Hui, in Hainan Island, China, were screened for G6PD deficiency. 9 out of 139 Li (6.47%), 8 out of 48 Miao (16.67%), and 2 out of 109 Hui (1.83%) individuals were found to be G6PD deficient. Of these 19 variant samples, three were subjected to G6PD characterization and found to be different from each other. They were considered to be G6PD Miaozu-Baisha, G6PD Qingyuan, and a new variant tentatively named G6PD Huizu-Sanya.