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Effects of omitting a covariate in Poisson models when the data are balanced.

Authors
Petersen-MR; Deddens-JA
Source
Can J Stat 2000 Apr-Jun; 28(2):439-445
NIOSHTIC No.
20020779
Abstract
The authors show that for balanced data, the estimate of effects of interest and of their standard errors are unaffected when a covariate is removed from a multiplicative Poisson model. As they point out, this is not verified in the analogous linear model, nor in the logistic model. In the first case, only the estimated coefficients remain the same, while in the second case, both the estimated effects and their standard errors can change.
Keywords
Models; Statistical-analysis; Analytical-processes
Publication Date
20000401
Document Type
Journal Article
Fiscal Year
2000
NTIS Accession No.
NTIS Price
Issue of Publication
2
ISSN
0319-5724
NIOSH Division
DSHEFS
Source Name
The Canadian Journal of Statistics
State
OH
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