Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Hazard Ratios with 95% confidence intervals for schizophrenia as a function of the premorbid IQ score in the general population and in first cousins, half-siblings and full siblings discordant for IQ score. Within these relative pairs with differing IQs, the association between IQ and schizophrenia is as strong as that seen in the general population.
