Rate of hospitalization due to infectious disease and rate of death with infection among biological and adoptive siblings, in predisposed siblings compared to non-predisposed.

Analyses are stratified by sex of adoptee and sibling, and by birth year group of adoptee and sibling. Siblings of the same adoptee are analysed in one model allowing for correlation between observations.1Siblings to an adoptee hospitalized with infection or with infection as a cause of death.2Siblings to an adoptee hospitalized with infection.3Siblings to an adoptee with infection as a cause of death.4Assuming additive genetic effect on the log hazard scale.5Assuming additive genetic effect is inappropriate.