>>11643874Those are the percentages of newborns that are tested for sickle-cell disease among the total number of newborns.
Since that disease is only really present in african-decended, middle eastern and indian populations, and since it only appears when the kids get two diseased alleles, maternity centers only test the children whose TWO parents are black, arab or indian.
So about 38,85% of newborns in france in 2015 had two african, middle eastern or indian parents. 73,40% in the Paris region.
