Mapping disease at an approximated individual level using aggregate data: A case study of mapping New Hampshire birth defects
International Journal of Environmental Research and Public Health, ISSN: 1660-4601, Vol: 10, Issue: 9, Page: 4161-4174
2013
- 11Citations
- 29Usage
- 29Captures
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Metrics Details
- Citations11
- Citation Indexes11
- 11
- CrossRef10
- Usage29
- Downloads24
- Abstract Views5
- Captures29
- Readers29
- 29
Article Description
Background: Limited by data availability, most disease maps in the literature are for relatively large and subjectively-defined areal units, which are subject to problems associated with polygon maps. High resolution maps based on objective spatial units are needed to more precisely detect associations between disease and environmental factors. Method: We propose to use a Restricted and Controlled Monte Carlo (RCMC) process to disaggregate polygon-level location data to achieve mapping aggregate data at an approximated individual level. RCMC assigns a random point location to a polygon-level location, in which the randomization is restricted by the polygon and controlled by the background (e.g., population at risk). RCMC allows analytical processes designed for individual data to be applied, and generates high-resolution raster maps. Results: We applied RCMC to the town-level birth defect data for New Hampshire and generated raster maps at the resolution of 100 m. Besides the map of significance of birth defect risk represented by p-value, the output also includes a map of spatial uncertainty and a map of hot spots. Conclusions: RCMC is an effective method to disaggregate aggregate data. An RCMC-based disease mapping maximizes the use of available spatial information, and explicitly estimates the spatial uncertainty resulting from aggregation. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84883691869&origin=inward; http://dx.doi.org/10.3390/ijerph10094161; http://www.ncbi.nlm.nih.gov/pubmed/24018838; https://www.mdpi.com/1660-4601/10/9/4161; https://digitalcommons.dartmouth.edu/facoa/1012; https://digitalcommons.dartmouth.edu/cgi/viewcontent.cgi?article=2014&context=facoa; https://dx.doi.org/10.3390/ijerph10094161; https://www.mdpi.com/1660-4601/10/9/4161/pdf; https://www.mdpi.com/1660-4601/10/9/4161/htm; http://www.mdpi.com/1660-4601/10/9/4161/; https://www.mdpi.com/1660-4601/10/9/4161/pdf?version=1403140743; http://www.mdpi.com/1660-4601/10/9/4161
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