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SHORT COMMUNICATIONPrevalence of Glucose-6-Phosphate Dehydrogenase Deficiency in Sichuan, China by Jing Zhang, Yali Cui, Xia Wang, Yingying Li, Dongmei Jiang, Wei Dai, Yongmei Jiang

Background: Our goals were to screen newborns and characterize the occurrence of glucose-6-phosphate dehydrogenase (G6PD) deficiency in southwestern China. Meanwhile, we would like to analyze the factors that might affect the results of neonatal dried blood spots for glucose-6-phosphate dehydrogenase screening test, to improve the clinical quality control level, effectively reduce the external factors in the process of detection.
Methods: This study involved an evaluation of G6PD data for 20,644 newborns from a universal newborn screening program. Heel prick blood specimens were collected around 72 hours after birth and were dried on filter papers. For G6PD deficiency the fluorescent spot test was employed. We studied the association between incidence of G6PD deficiency and influence factors.
Results: This study involved an evaluation of G6PD data for 20,644 neonatal heel prick blood samples from 10,984 males and 9,660 females. There were 503 positive results for G6PD deficiency (299 males and 204 females), and the G6PD deficiency-positive rate was estimated to be around 2.4%. The gender-specific prevalence for males was 2.7%, and for females 2.1%. Multiple factors may influence the result of the G6PD test, such as season, temperature, and specimen of indwelling time.
Conclusions: This study analyzed the prevalence of G6PD deficiency in Sichuan, China. Accelerating the speed of sample delivery and ensuring availability of screening results can aid the screening and diagnosis.

DOI: 10.7754/Clin.Lab.2017.170330