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Editorial
. 2010 Sep;197(3):170-1.
doi: 10.1192/bjp.bp.110.081331.

Interpretation of interactions: guide for the perplexed

Kenneth S Kendler, Charles O Gardner
Editorial

Interpretation of interactions: guide for the perplexed

Kenneth S Kendler et al. Br J Psychiatry. 2010 Sep.

Abstract

In this issue, Zammit et al explore how five dichotomised risk factors work together to predict risk for non-affective psychosis in a large Swedish cohort. In this editorial, we review these findings, and comment on both the nature of additive v. multiplicative models and the meaning of statistical interactions.

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