A fast and powerful tree-based association test for detecting complex joint effects in case-control studies.

ABSTRACT:

Motivation

Multivariate tests derived from the logistic regression model are widely used to assess the joint effect of multiple predictors on a disease outcome in case-control studies. These tests become less optimal if the joint effect cannot be approximated adequately by the additive model. The tree-structure model is an attractive alternative, as it is more apt to capture non-additive effects. However, the tree model is used most commonly for prediction and seldom for hypothesis testing, mainly because of the computational burden associated with the resampling-based procedure required for estimating the significance level.

Results

We designed a fast algorithm for building the tree-structure model and proposed a robust TREe-based Association Test (TREAT) that incorporates

SUBMITTER: Zhang H 

PROVIDER: S-EPMC4103596 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature