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Log‐linear model selection in a rural dental health study
Author(s) -
Oler Jacqueline,
Bentley J. Marvin
Publication year - 1983
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/sim.4780020107
Subject(s) - selection (genetic algorithm) , statistics , linear model , log linear model , model selection , computer science , econometrics , mathematics , artificial intelligence
This field study sought to measure the effects of dental delivery and school‐based, dental health education on use of dental health care by children in grades K‐6. We attempted to control for two potential confounding factors by an approximate randomization of children into treatment groups with stratification on grade and initial oral disease levels. A backward elimination log‐linear model selection procedure for the 5‐factor classification permitted tests for higher‐order interaction, namely effect‐modification, confounding and collapsibility. We found that the effect of dental health education on use of dental care depended on the mode of dental delivery.