Neonatal non-hemolytic hyperbilirubinemia: a prevalence study of adult neuropsychiatric disability and cognitive function in 463 male Danish conscripts.

Objective: To examine whether neonatal non-hemolytic hyperbilirubinemia is associated with adult neuropsychiatric disability and cognitive function.

Methods: The study included all men born as singletons > or =35 gestational weeks in two Danish counties from 1 January 1977 to 31 December 1983 that registered at conscription in a Danish region. Their infant levels of hyperbilirubinemia was ascertained from hospital records.