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Canadian Journal of Public Health = Revue Canadienne de Santé Publique logoLink to Canadian Journal of Public Health = Revue Canadienne de Santé Publique
. 2010 Nov 1;101(6):459–463. doi: 10.1007/BF03403964

Automated Mortality Surveillance in South-Eastern Ontario for Pandemic Influenza Preparedness

Cary Fan 110,, Adam van Dijk 210, Dillan Fernando 310, Justin N Hall 410, Aaron Wynn 110, Ian Gemmill 510,710, Kieran Michael Moore 610,810
PMCID: PMC6974207  PMID: 21370781

Abstract

Background: The recent Canadian experience with pandemic H1N1 (pH1N1) influenza in 2009 highlighted the need for enhanced surveillance at local and regional levels to support evidence-based decision making by physicians and public health. We describe the rationale, methodology, and provide preliminary findings from the implementation of an automated Mortality Surveillance System (MSS) in the Kingston, Frontenac and Lennox & Addington (KFL&A) health unit.

Methods: The MSS utilized an automated web-based framework with secure data transfer. A data sharing agreement between the local Medical Officer of Health and the City of Kingston facilitated weekly updates of mortality data. Deaths due to influenza were classified using keywords in the cause of death and a phonetic algorithm to capture alternate spellings. Anomaly detection was modeled on the modified cumulative sum algorithm implemented in the Early Aberration Reporting System.

Results: Retrospective analysis of municipal mortality data over a 10-year period established baseline mortality rates in the region. MSS data monitored during the pH1N1 influenza season showed no significant impact on the burden or timing of mortality in the KFL&A health unit.

Conclusion: Municipal data enabled surveillance of mortality in the KFL&A region with weekly updates. Other municipalities may participate in this surveillance project using the Kingston model without significant ongoing investment. Efforts to improve data quality at the physician and transcription level are ongoing. Integration of mortality data and other real-time data streams into an integrated electronic public health dashboard could provide decision-makers with timely information during public health emergencies.

Key words: Pandemics, emergency preparedness, public health surveillance, excess mortality

Footnotes

Acknowledgements: This Project was supported by Kingston, Frontenac and Lennox & Addington Public Health. We wish to acknowledge the efforts of Blair Johnson, Chief Information Officer of the City of Kingston, for his support in implementing the data sharing agreement and answering questions regarding the dataset.

Conflict of Interest: None to declare.

References

  • 1.Schlegelmilch J, Gunn J, Pendarvis J, Donovan M, Vinjé J, Widdowson M, et al. Bio-surveillance and enhanced situational awareness. Adv Dis Surveillanc. 2007;4:191. [Google Scholar]
  • 2.Fallon K, Boone D. Death certificate surveillance - New Hampshire. MMW. 2004;53:236. [Google Scholar]
  • 3.Muscatello D, Morton P, Evans I, Gilmour R. Prospective surveillance of excess mortality due to influenza in New South Wales: Feasibility and statistical approach. Commun Dis Intel. 2008;32:435–42. doi: 10.33321/cdi.2008.32.42. [DOI] [PubMed] [Google Scholar]
  • 4.Canadian Medical Association. Lessons from the frontlines: A collaborative report on H1N1. 2010. [Google Scholar]
  • 5.Ontario Ministry of HealthLong-Term Care. Ontario Health Plan for an Influenza Pandemic 2008. 2008. [Google Scholar]
  • 6.Public Health Agency of Canada. Canadian Pandemic Influenza Plan for the Health Sector. 2006. [Google Scholar]
  • 7.Buehler J, Hopkins R, Overhage J, Sosin D, Tong V. Framework for evaluating public surveillance systems for early detection of outbreaks: Recommendations from the CDC Working Group. MMWR Recomm Rev. 2004;53(RR-5):1–11. [PubMed] [Google Scholar]
  • 8.Donovan T, Moore KM, VanDenKerkhof EG. Employee absenteeism based on occupational health visits in an urban tertiary care Canadian hospital. Public Health Nurt. 2008;25(6):565–75. doi: 10.1111/j.1525-1446.2008.00744.x. [DOI] [PubMed] [Google Scholar]
  • 9.Moore KM, Edgar BL, McGuinness D. Implementation of an automated, realtime public health surveillance system linking emergency departments and health units: Rationale and methodology. CJE. 2008;10(2):114–19. doi: 10.1017/s1481803500009817. [DOI] [PubMed] [Google Scholar]
  • 10.Ontario Ministry of HealthLong-Term Care. Ontario Public Health Standards. Toronto, ON: Queen’s Printer for Ontario; 2008. [Google Scholar]
  • 11.Report No. 09–172 . Data Partnership Agreement with Kingston Frontenac Lennox and Addington Public Health. 2009. [Google Scholar]
  • 12.Knuth DE. The Art of Computer Programming. Volume 3: Sorting and Searchin. 2nd. Reading, MA: Addison-Wesley; 1998. [Google Scholar]
  • 13.Stroup DF, Williamson GD, Herndon JL. Detection of aberrations in the occurrence of notifiable diseases surveillance data. Stat Med. 1989;8:323–29. doi: 10.1002/sim.4780080312. [DOI] [PubMed] [Google Scholar]
  • 14.Farrington CP, Andrews NJ, Beale AD, Catchpole MA. A statistical algorithm for the early detection of outbreaks of infectious disease. J Royal Stat Soc Series. 1996;159:547–63. doi: 10.2307/2983331. [DOI] [Google Scholar]
  • 15.Lucas JM. Counted data CUSUM’s. Technometric. 1985;27:129–44. doi: 10.1080/00401706.1985.10488030. [DOI] [Google Scholar]
  • 16.Reichert TA, Simonsen L, Sharma A, Pardo SA, Fedson DS, Miller MA. Influenza and the winter increase in mortality in the United States, 1959–1999. Am J Epidemiol. 2004;160(5):492–502. doi: 10.1093/aje/kwh227. [DOI] [PubMed] [Google Scholar]
  • 17.Canadian Institute for Health Information. H1N1 in Canada - A Context for Understanding Patients and Their Use of Hospital Services. 2010. [Google Scholar]
  • 18.Myers KA, Farquhar DR. Improving the accuracy of death certification. CMA. 1998;158(10):1317–23. [PMC free article] [PubMed] [Google Scholar]

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