Aim: To describe the incidence of infants born at term or near-term with extreme hyperbilirubinaemia.
Methods: The study period was between 1 January 2002 and 31 December 2005, and included all infants born alive at term or near-term in Denmark. Medical reports on all newborn infants with a total serum bilirubin concentration (TSB) > or = 450 micromol/L were obtained by linking laboratory data to the unique Danish personal identification number.