Estimation of radiation risk in presence of classical additive and Berkson multiplicative errors in exposure doses
- Publication Type:
- Journal Article
- Biostatistics, 2016, 17 (3), pp. 422 - 436
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© 2016 The Author 2016. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: firstname.lastname@example.org. In this paper, the influence of measurement errors in exposure doses in a regression model with binary response is studied. Recently, it has been recognized that uncertainty in exposure dose is characterized by errors of two types: classical additive errors and Berkson multiplicative errors. The combination of classical additive and Berkson multiplicative errors has not been considered in the literature previously. In a simulation study based on data from radio-epidemiological research of thyroid cancer in Ukraine caused by the Chornobyl accident, it is shown that ignoring measurement errors in doses leads to overestimation of background prevalence and underestimation of excess relative risk. In the work, several methods to reduce these biases are proposed. They are new regression calibration, an additive version of efficient SIMEX, and novel corrected score methods.
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