The Directions of Selection Bias
Statistics Theory
2017-01-17 v2 Statistics Theory
Abstract
We show that if the exposure and the outcome affect the selection indicator in the same direction and have non-positive interaction on the risk difference, risk ratio or odds ratio scale, the exposure-outcome odds ratio in the selected population is a lower bound for true odds ratio.
Cite
@article{arxiv.1609.07834,
title = {The Directions of Selection Bias},
author = {Zhichao Jiang and Peng Ding},
journal= {arXiv preprint arXiv:1609.07834},
year = {2017}
}