Spatio-temporal modelling using B-spline for disease mapping: analysis of childhood cancer trends

Mahmoud Torabi and Rhonda J. Rosychuk

Journal of Applied Statistics, 2011, vol. 38, issue 9, 1769-1781

Abstract: To examine childhood cancer diagnoses in the province of Alberta, Canada during 1983--2004, we construct a generalized additive mixed model for the analysis of geographic and temporal variability of cancer ratios. In this model, spatially correlated random effects and temporal components are adopted. The interaction between space and time is also accommodated. Spatio-temporal models that use conditional autoregressive smoothing across the spatial dimension and B-spline over the temporal dimension are considered. We study the patterns of incidence ratios over time and identify areas with consistently high ratio estimates as areas for potential further investigation. We apply the method of penalized quasi-likelihood to estimate the model parameters. We illustrate this approach using a yearly data set of childhood cancer diagnoses in the province of Alberta, Canada during 1983--2004.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:taf:japsta:v:38:y:2011:i:9:p:1769-1781

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DOI: 10.1080/02664763.2010.529877

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