The authors report that Gly71Arg is a common mutation involved with hyperbilirubinemia in neonates. Comparing infants that required phototherapy (ie. had severe hyperbilirubinemia) with those that did not produces the following case/control numbers: case (hom): 4, case (het): 8, case(WT): 5, control (hom): 3, control (het): 40, control (WT): 99. Counting alleles, this is: case+: 16, case-: 18, control+: 46, control-: 238. This is an OR = 4.6 with significance of p = 9.8 * 10^-5. Counting homozygotes, case+: 4, case-: 13, control+: 3, control-: 139, producing an OR = 14 and p = 0.0026.