Absolute frequencies of Duffy blood group system expression and its isoforms and G6PD expression in our cohort from Mauritania.

Duffy blood group system expression and its isoforms were determined based on known polymorphic positions on ACKR1 gene and its promoter (Table 1). G6PD expression (g6pd +) and deficiency (g6pd -) were published in our earlier works [33,40] and based on the 2024 WHO classification [96]. X-linked G6PD deficiency cannot be genotypically determined in heterozygous females due to random X chromosome inactivation. Absolute frequencies were calculated as a function of the sex (F: female, M: male) and ethnic groups: Black Moors (BM), White Moors (WM), Pular (PL), Wolof (WF) and Soninke (SNK). NA refers to an absence of genotyping. (XLSX)