Abstract
Lung cancer is the second most commonly diagnosed cancer in both men and women in Georgia, USA. However, the spatio-temporal patterns of lung cancer risk in Georgia have not been fully studied. Hierarchical Bayesian models are used here to explore the spatio-temporal patterns of lung cancer incidence risk by race and gender in Georgia for the period of 2000–2007. With the census tract level as the spatial scale and the 2-year period aggregation as the temporal scale, we compare a total of seven Bayesian spatio-temporal models including two under a separate modeling framework and five under a joint modeling framework. One joint model outperforms others based on the deviance information criterion. Results show that the northwest region of Georgia has consistently high lung cancer incidence risk for all population groups during the study period. In addition, there are inverse relationships between the socioeconomic status and the lung cancer incidence risk among all Georgian population groups, and the relationships in males are stronger than those in females. By mapping more reliable variations in lung cancer incidence risk at a relatively fine spatio-temporal scale for different Georgian population groups, our study aims to better support healthcare performance assessment, etiological hypothesis generation, and health policy making.
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Abbreviations
- CAR:
-
Conditional autoregression
- CI:
-
Credible interval
- DIC:
-
Deviance information criterion
- GIS:
-
Geographical information system
- MCMC:
-
Markov chain Monte Carlo
- RR:
-
Relative risk
- SES:
-
Socioeconomic status
- SIR:
-
Standardized Incidence Ratio
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Acknowledgments
All of the authors want to thank Dr. Sara Wagner for her help on the Georgia cancer data acquisition. Dr. John E. Vena's effort was sponsored in part by a Distinguished Cancer Scientist award from the Georgia Cancer Coalition (GCC).
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Yin, P., Mu, L., Madden, M. et al. Hierarchical Bayesian modeling of spatio-temporal patterns of lung cancer incidence risk in Georgia, USA: 2000–2007. J Geogr Syst 16, 387–407 (2014). https://doi.org/10.1007/s10109-014-0200-4
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DOI: https://doi.org/10.1007/s10109-014-0200-4