||Analysis of Case-Control Data with Covariate Measurement Error: Application to Diet and Colon Cancer.
Armstrong, B. G. ;
Whittemore, A. S. ;
Howe., G. R. ;
||McGill Univ., Montreal (Quebec). ;Stanford Univ., CA. School of Medicine. ;Toronto Univ. (Ontario).;Health Effects Research Lab., Research Triangle Park, NC.
Human nutrition ;
Statistical analysis ;
Regression analysis ;
Mathematical models ;
Colonic neoplasms ;
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The authors propose a method for estimating odds ratios from case-control data in which covariates are subject to measurement error. The measurement error may contain both a random component and a systematic difference between cases and controls (recall bias). A multivariate normal discriminant analysis model is assumed. If the distribution of measurement error is known, then a simple correction to naive (biased) estimates of odds ratios from logistic regression of disease on fallible measurements of covariates removes bias. The same correction yields confidence intervals and significance tests. They apply the proposed methods to data from case-control study of colon cancer and diet. (Copyright (c) 1989 by John Wiley & Sons, Ltd.)