Skip to main content
Canadian Journal of Public Health = Revue Canadienne de Santé Publique logoLink to Canadian Journal of Public Health = Revue Canadienne de Santé Publique
editorial
. 2014 Nov 1;105(6):e453–e455. doi: 10.17269/cjph.105.4721

Canada Post community mailboxes: Implications for health research

Daniel Fuller 110,, Martine Shareck 210
PMCID: PMC6972140  PMID: 25560893

Abstract

This article discusses the implications for health research of Canada Post’s transition from door-to-door postal delivery to community mailboxes. We argue that using postal code data to geocode participants based on community mailboxes will result in positional and linkage errors. Positional errors involve misplacing people’s residential location. Linkage errors result from incorrectly linking residential location from community mailboxes to census or health administrative data. The article discusses examples of how the transition to community mailboxes could have important implications for health research. We encourage research examining the extent of positional and linkage errors on the 11 pilot communities transitioning to community mailboxes in the fall of 2014.

Key Words: Geography, data collection, health, epidemiology

Footnotes

Conflict of Interest: None to declare.

References

  • 1.Meijer M, Röhl J, Bloomfield K, Grittner U. Do neighborhoods affect individual mortality? A systematic review and meta-analysis of multilevel studies. Soc Sci Med. 2013;74(8):1204–12. doi: 10.1016/j.socscimed.2011.11.034. [DOI] [PubMed] [Google Scholar]
  • 2.Cummins S, Macintyre S, Davidson S, Ellaway A. Measuring neighbourhood social and material context: Generation and interpretation of ecological data from routine and non-routine sources. Health & Place. 2005;11(3):249–60. doi: 10.1016/j.healthplace.2004.05.003. [DOI] [PubMed] [Google Scholar]
  • 3.Canada Post’s transition to community mailbox delivery will begin in fall 2014 in 11 communities across Canada. Canada Post. 2014. [Google Scholar]
  • 4.Healy MA, Gilliland JA. Quantifying the magnitude of environmental exposure misclassification when using imprecise address proxies in public health research. Spatial and Spatio-temporal Epidemiol. 2012;3(1):55–67. doi: 10.1016/j.sste.2012.02.006. [DOI] [PubMed] [Google Scholar]
  • 5.Duncan DT, Kawachi I, Subramanian SV, Aldstadt J, Melly SJ, Williams DR. Examination of how neighborhood definition influences measurements of youths’ access to tobacco retailers: A methodological note on spatial misclassification. Am J Epidemiol. 2014;179(3):373–81. doi: 10.1093/aje/kwt251. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 6.Postal Code Conversion File (PCCF), Reference Guide. Catalogue no. 92-154-G: Ottawa, ON: Statistics Canada, 2013.
  • 7.Pampalon R, Hamel D, Gamache P. A comparison of individual and area- based socio-economic data for monitoring social inequalities in health. Health Reports. 2009;20(3):84–94. [PubMed] [Google Scholar]
  • 8.Roos LL, Magoon J, Gupta S, Chateau D, Veugelers PJ. Socioeconomic determinants of mortality in two Canadian provinces: Multilevel modelling and neighborhood context. Soc Sci Med. 2004;59(7):1435–47. doi: 10.1016/j.socscimed.2004.01.024. [DOI] [PubMed] [Google Scholar]
  • 9.Fuller D, Cummins S, Matthews SA. Does transportation mode modify associations between distance to food store, fruit and vegetable consumption, and BMI in low-income neighborhoods? Am J Clin Nutr. 2013;97(1):167–72. doi: 10.3945/ajcn.112.036392. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 10.Shareck M, Kestens Y, Frohlich KL. Moving beyond the residential neighborhood to explore social inequalities in exposure to area-level disadvantage: Results from the Interdisciplinary Study on Inequalities in Smoking. Soc Sci Med. 2014;108:106–14. doi: 10.1016/j.socscimed.2014.02.044. [DOI] [PubMed] [Google Scholar]
  • 11.Pampalon R, Hamel D, Gamache P, Raymond G. A deprivation index for health planning in Canada. Chronic Dis Can. 2009;29(4):178–91. [PubMed] [Google Scholar]
  • 12.Hoek G, Brunekreef B, Goldbohm S, Fischer P v d, Brandt PA. Association between mortality and indicators of traffic-related air pollution in the Netherlands: A cohort study. Lancet. 2002;360(9341):1203–09. doi: 10.1016/S0140-6736(02)11280-3. [DOI] [PubMed] [Google Scholar]
  • 13.Pampalon R, Hamel D, Gamache P. Health & Place. 2009. Health inequalities in urban and rural Canada. Comparing inequalities in survival according to an individual and area-based deprivation index; pp. 1–21. [DOI] [PubMed] [Google Scholar]

Articles from Canadian Journal of Public Health = Revue Canadienne de Santé Publique are provided here courtesy of Springer

RESOURCES