Letters to the Editor
February 2008

Diabetes Mellitus and Schizophrenia

Author Affiliations

Copyright 2008 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2008

Arch Gen Psychiatry. 2008;65(2):237-238. doi:10.1001/archgenpsychiatry.2007.30

We have with great interest read the recent report from Finland by Juvonen et al1 of a reduced incidence of schizophrenia in patients with type 1 diabetes mellitus. Their finding replicates and strengthens our marginally significant finding of a negative association (males, odds ratio [OR], 0.7; 95% confidence limits, 0.5, 1.1; females, OR, 0.7; 95% confidence limits, 0.4, 1.0) in our report from 2006 based on independent registers in Denmark.2

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