SLCO1B1 and Hyperbilirubinemia: Carriers of the c.699G>A allele faced a 6.3-fold higher risk of developing hyperbilirubinemia (OR: 6.30, 95% CI: 1.48-26.80, <i>p</i> = 0.032), while no significant associations were found for OATP1B1 variants.