HMOX1 and Hyperbilirubinemia: Results from a prospective study including 444 healthy infants born in Taiwan from 2013 to 2015 showed a higher frequency of short HO-1 promoter GT-allele (<24 repeats) in hyperbilirubinemic infants than in nonhyperbilirubinemic infants (P < 0.05), and short HO-1 promoter GT-repeat was associated with an increased risk of neonatal hyperbilirubinemia (RR = 2.185; 95% CI = 1.527–3.125) [25].