ArticlePloS one2014
Inaccurate ascertainment of morbidity and mortality due to influenza in administrative databases: a population-based record linkage study.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 34 citations in OpenAlex.
- An adaptive method of emergency department syndromic surveillance to nowcast the frequency of presentations that will have a severe 28-day outcome following influenza or COVID-19 infection: a retrospective analytical record linkage study.American journal of epidemiology · 2026Article
- Influenza-Related Deaths in the Czech Republic Over 21 Seasons.Influenza and other respiratory viruses · 2025Article
- Estimated Respiratory Syncytial Virus-Related Hospitalizations and Deaths Among Children and Adults in Spain, 2016-2019.Infectious diseases and therapy · 2024Article
- Excess mortality among people with communicable diseases over a 30-year period, Victoria, Australia: a whole of population cohort study.The Lancet regional health. Western Pacific · 2023Article
- Factors associated with death due to severe acute respiratory syndrome caused by influenza: Brazilian population study.Journal of infection and public health · 2022Article
- Modelled estimates of hospitalisations attributable to respiratory syncytial virus and influenza in Australia, 2009-2017.Influenza and other respiratory viruses · 2022Article
- A multicenter evaluation of computable phenotyping approaches for SARS-CoV-2 infection and COVID-19 hospitalizations.NPJ digital medicine · 2022Article
- Influenza Vaccine Effectiveness Against All-Cause Mortality Following Laboratory-Confirmed Influenza in Older Adults, 2010-2011 to 2015-2016 Seasons in Ontario, Canada.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021Article
- Accuracy of Computable Phenotyping Approaches for SARS-CoV-2 Infection and COVID-19 Hospitalizations from the Electronic Health Record.medRxiv : the preprint server for health sciences · 2021Article
- Comparative epidemiology, phylogenetics, and transmission patterns of severe influenza A/H3N2 in Australia from 2003 to 2017.Influenza and other respiratory viruses · 2020Article
- Estimated hospitalisations attributable to seasonal and pandemic influenza in Australia: 2001- 2013.PloS one · 2020Article
- Flucast: A Real-Time Tool to Predict Severity of an Influenza Season.JMIR public health and surveillance · 2019Article
- Rapid mapping of the spatial and temporal intensity of influenza.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019Article
- Getting a grippe on severity: a retrospective comparison of influenza-related hospitalizations and deaths captured in reportable disease and administrative data sources in Ontario, Canada.BMC public health · 2019Article
- Article
- Estimates of global seasonal influenza-associated respiratory mortality: a modelling study.Lancet (London, England) · 2018Article
- Influenza-associated mortality in South Africa, 2009-2013: The importance of choices related to influenza infection proxies.Influenza and other respiratory viruses · 2018Article
- Using record linkage to validate notification and laboratory data for a more accurate assessment of notifiable infectious diseases.BMC medical informatics and decision making · 2017Article
- Epidemiology of influenza B in Australia: 2001-2014 influenza seasons.Influenza and other respiratory viruses · 2017Article
- Human temperatures for syndromic surveillance in the emergency department: data from the autumn wave of the 2009 swine flu (H1N1) pandemic and a seasonal influenza outbreak.BMC emergency medicine · 2016Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHistorically, counting influenza recorded in administrative health outcome databases has been considered insufficient to estimate influenza attributable morbidity and mortality in populations. We used database record linkage to evaluate whether modern databases have similar limitations.
methodsPerson-level records were linked across databases of laboratory notified influenza, emergency department (ED) presentations, hospital admissions and death registrations, from the population (∼6.9 million) of New South Wales (NSW), Australia, 2005 to 2008.
resultsThere were 2568 virologically diagnosed influenza infections notified. Among those, 25% of 40 who died, 49% of 1451 with a hospital admission and 7% of 1742 with an ED presentation had influenza recorded on the respective database record. Compared with persons aged ≥65 years and residents of regional and remote areas, respectively, children and residents of major cities were more likely to have influenza coded on their admission record. Compared with older persons and admitted patients, respectively, working age persons and non-admitted persons were more likely to have influenza coded on their ED record. On both ED and admission records, persons with influenza type A infection were more likely than those with type B infection to have influenza coded. Among death registrations, hospital admissions and ED presentations with influenza recorded as a cause of illness, 15%, 28% and 1.4%, respectively, also had laboratory notified influenza. Time trends in counts of influenza recorded on the ED, admission and death databases reflected the trend in counts of virologically diagnosed influenza.
conclusionsA minority of the death, hospital admission and ED records for persons with a virologically diagnosed influenza infection identified influenza as a cause of illness. Few database records with influenza recorded as a cause had laboratory confirmation. The databases have limited value for estimating incidence of influenza outcomes, but can be used for monitoring variation in incidence over time.
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