Cited by 147Influenza Virus Research StudiesRespiratory viral infections researchPneumonia and Respiratory Infections

Age- and sex-related risk factors for influenza-associated mortality in the United States between 1997-2007

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Quandelacy, Talia M., Viboud, Cecile, Charu, Vivek, Lipsitch, Marc, Goldstein, Edward·2014·American Journal of Epidemiology

Abstract

Limited information on age- and sex-specific estimates of influenza-associated death with different underlying causes is currently available. We regressed weekly age- and sex-specific US mortality outcomes underlying several causes between 1997 and 2007 to incidence proxies for influenza A/H3N2, A/H1N1, and B that combine data on influenza-like illness consultations and respiratory specimen testing, adjusting for seasonal baselines and time trends. Adults older than 75 years of age had the highest average annual rate of influenza-associated mortality, with 141.15 deaths per 100,000 people (95% confidence interval (CI): 118.3, 163.9), whereas children under 18 had the lowest average mortality rate, with 0.41 deaths per 100,000 people (95% CI: 0.23, 0.60). In addition to respiratory and circulatory causes, mortality with underlying cancer, diabetes, renal disease, and Alzheimer disease had a contribution from influenza in adult age groups, whereas mortality with underlying septicemia had a contribution from influenza in children. For adults, within several age groups and for several underlying causes, the rate of influenza-associated mortality was somewhat higher in men than in women. Of note, in men 50-64 years of age, our estimate for the average annual rate of influenza-associated cancer mortality per 100,000 persons (1.90, 95% CI: 1.20, 2.62) is similar to the corresponding rate of influenza-associated respiratory deaths (1.81, 95% CI: 1.42, 2.21). Age, sex, and underlying health conditions should be considered when planning influenza vaccination and treatment strategies.

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  • Risk factors for hospitalisation and death, including age and comorbidities, are consistent with those previously identified for respiratory viruses.

    “Risk factors for hospitalisation and death, including age and comorbidities, are consistent with those previously identified for respiratory viruses.121”

    From Severe acute respiratory syndrome (SARS) mathematical models and disease parameters: a systematic review (2025) · cites this paper as [121]

    The Abstract reports that age predicts influenza-associated death and that deaths occurred with several underlying conditions. The discussion (p. 159) says its findings on elderly deaths and underlying respiratory and circulatory disease are generally consistent with previous work. The paper does not assess risk factors for hospitalisation, and its findings concern influenza rather than respiratory viruses generally. (LLM, conf=0.86)

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  1. [15]15. Overview of Influenza Surveillance in the United States. Atlanta, GA: US Centers for Disease Control and Prevention; 166 Quandelacy et al. Am J Epidemiol. 2014;179(2):156-167 2013. (http://www.cdc.gov/flu/weekly/overview.htm). (Accessed February 1, 2013).

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Authors
Quandelacy, T. M., Viboud, C., Charu, V., Lipsitch, M., & Goldstein, E.
Affiliations
Harvard University (US)
Corresponding author
Goldstein, Edward
Venue
American Journal of Epidemiology
Published
2013-11-04
Volume
179
Issue
2
Pages
156-167
ISSN
  • 0002-9262 (ISSN-L)
  • 1476-6256
OpenAlex
W2144402463
Cited by
144
References
34
Citations by year
2026: 3 · 2025: 8 · 2024: 12 · 2023: 13 · 2022: 14 · 2021: 15 · 2020: 13 · 2019: 14 · 2018: 10 · 2017: 14 · 2016: 9 · 2015: 13 · 2014: 5 · 2013: 1
FWCI
6.80
Type
journal article
Language
en
Open access
Locations
  • American Journal of Epidemiology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Pfizer
  • Johns Hopkins University
  • National Institutes of Health
  • School of Medicine, Johns Hopkins University
  • National Institute of General Medical Sciences (U54GM088558, T32GM007309, award number U54GM088558)
  • National Institute of Allergy and Infectious Diseases (K01AI101010)
  • Fogarty International Center
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Health Sciences › Medicine › Epidemiology › Respiratory viral infections research
  • Health Sciences › Medicine › Epidemiology › Pneumonia and Respiratory Infections
Keywords
influenza-associated deaths, age-specific mortality, sex differences, H3N2, H1N1 influenza, influenza B, influenza-like illness, underlying cause of death, cancer mortality, respiratory mortality, septicemia, children, older adults
MeSH terms
Adolescent, Adult, Age Factors, Aged, Child, Female, Humans, Influenza, Human, Male, Middle Aged, Pneumonia, Risk Factors, Sex Factors, United States, Alphainfluenzavirus, Betainfluenzavirus, Young Adult

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