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The production and interpretation of disease maps

A methodological case-study

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Abstract

Background

The study of the spatial variation in disease incidence is a vital component of descriptive epidemiology. The production of attractive and informative disease maps complements any formal statistical analyses of spatial variations and often their visual impact will influence the recipient of the information much more than the accompanying statistics. Like any other graphical display, however, a map can both inform and mislead.

Methods

We describe methodological alternatives and pitfalls for the production of disease maps using data on recent suicides in England and Wales as an illustrative example.

Results

Decisions concerning the methods of mapping of suicide rates, including smoothing, choice of grouping criteria and colouring scheme dramatically influence the resulting map and how it might be interpreted by the reader.

Conclusions

This study provides clinicians and other non-specialist research workers an insight into the methodological pitfalls of disease mapping and atlas production and should also act as a methodological framework for a critical appraisal of published maps and atlases.

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Author notes

  1. Mohsen Rezaeian

    Present address: Social Medicine Department, Rafsanjan Medical School, Iran

Authors and Affiliations

  1. Biostatistics Group, School of Epidemiology & Health Sciences, Stopford Building, Oxford Road, Manchester M13 9PT, UK

    Mohsen Rezaeian &  Graham Dunn

  2. Evidence Based Population Health Unit, School of Epidemiology & Health Sciences, The University of Manchester, UK

    Selwyn St. Leger

  3. School of Psychiatry, The University of Manchester, UK

    Louis Appleby

Authors
  1. Mohsen Rezaeian
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  2. Graham Dunn
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  3. Selwyn St. Leger
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  4. Louis Appleby
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Rezaeian, M., Dunn, G., St. Leger, S. et al. The production and interpretation of disease maps. Soc Psychiatry Psychiatr Epidemiol 39, 947–954 (2004). https://doi.org/10.1007/s00127-004-0829-2

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  • DOI: https://doi.org/10.1007/s00127-004-0829-2

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