IC: Stata module to compute measures of interaction contrast (biological interaction)

Niels Henrik Bruun (), Morten Fenger-Gron and Anders Prior
Additional contact information
Morten Fenger-Gron: Research Unit for General Practice, Aarhus University
Anders Prior: Research Unit for General Practice, Aarhus University

Statistical Software Components from Boston College Department of Economics

Abstract: It has become more common to investigate not only single factors effect on a outcome but also to look at the interaction between factors, as is facilitated by the last decadeís massive increase in computer resources to gather and analyses large databases. Several approaches haves been promoted. For the analyzes of binary (or count) data, a fairly well established position holds, that loglinear models estimating measures of relative risk type represent a convenient choice, whereas interactions are often best interpreted if estimated on a linear/additive scale. This code implement the procedure described in Hosmer & Lemeshow (Epidemiology, 1992) and Alfredsson et al. (Eur.J. Epidemiol. 2005) purely in Stata. These two sources however both uses odds ratios as approximations for relational risks. This code on the other hand opens up for using proper estimates of relational risks.

Language: Stata
Requires: Stata version 11
Keywords: interaction contrast; biological interaction (search for similar items in EconPapers)
Date: 2015-03-08, Revised 2017-04-22
Note: This module should be installed from within Stata by typing "ssc install ic". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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http://fmwww.bc.edu/repec/bocode/i/ic.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/ic.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/i/ici.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/ici.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/i/icp.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/icp.sthlp help file (text/plain)

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