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A marginalized diffusion model for estimating age at first lower endoscopy use from current status data

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We propose an approach for estimating the age at first lower endoscopy examination from current status data that were collected via two series of cross-sectional surveys. To model the national probability of ever having a lower endoscopy examination, we incorporate birth cohort effects into a mixed influence diffusion model. We link a state-specific model to the national level diffusion model by using a marginalized modelling approach. In future research, results from our model will be used as microsimulation model inputs to estimate the contribution of endoscopy examinations to observed changes in colorectal cancer incidence and mortality.
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Keywords: Bayesian; Diffusion of innovations; Hierarchical model; Marginal model

Document Type: Research Article

Affiliations: 1: Group Health Center for Health Studies, Seattle, USA 2: University of Washington, Seattle, USA

Publication date: February 1, 2008

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