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State-Level Influenza Hospitalization Burden in the United States, 2022-2023.

Supporting Files
File Language:
English


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  • Alternative Title:
    American Journal of Public Health, 2025, v. 115, no. 4: State-Level Influenza Hospitalization Burden in the United States, 2022-2023.
  • Journal Article:
    American Journal of Public Health
  • Personal Author:
    Couture, Alexia ; Iuliano, A. Danielle ; Chang, Howard H. ; Threlkel, Ryan ; Gilmer, Matthew ; O'Halloran, Alissa ; Ujamaa, Dawud ; Biggerstaff, Matthew ; Reed, Carrie
  • Description:
    To develop a method leveraging hospital-based surveillance to estimate influenza-related hospitalizations by state, age, and month as a means of enhancing current US influenza burden estimation efforts.

    Using data from the Influenza Hospitalization Surveillance Network (FluSurv-NET), we extrapolated monthly FluSurv-NET hospitalization rates after adjusting for testing practices and diagnostic test sensitivities to non-FluSurv-NET states. We used a Poisson zero-inflated model with an overdispersion parameter within the Bayesian hierarchical framework and accounted for uncertainty and variability between states and across time. Model validation included checking the sensitivity of results to input data, as well as model convergence diagnostics and comparing the results with independent data sources.

    We estimated 379 300 (90% credible interval CrI = 305 400, 479 300) influenza-related hospitalizations in the United States for the 2022-2023 season. Median cumulative state rates ranged widely from 23.2 to 249.0 per 100 000 people.

    Our estimates were comparable to national burden estimates incorporating other approaches while accounting for variations in the timing and geography of disease activity and changes in detection and reporting. Our results provide a complementary framework to calculate estimates at finer geographic scales. (

    . 2025;115(4):546-554. https://doi.org/10.2105/AJPH.2024.307928).
  • Content Notes:
    Author manuscript
  • Subjects:
  • Source:
    American Journal of Public Health, 2025, v. 115, no. 4
  • DOI:
    https://doi.org/10.2105/AJPH.2024.307928
  • ISSN:
    0090-0036 ; 1541-0048
  • Pubmed ID:
    39883901
  • Pubmed Central ID:
    PMC11903080
  • Document Type:
    Text
  • Funding:
    CC999999/ImCDC/Intramural CDC HHSUnited States/
  • Genre:
    Journal Article
  • Place as Subject:
    United States
  • Pages in Document:
    546-554 (16 pdf pages)
  • Volume:
    115
  • Issue:
    4
  • Download URL:
    https://stacks.cdc.gov/view/cdc/261721/cdc_261721_DS1.pdf
  • File Type:
    Filetype[PDF - 999.92 KB]
  • Collection(s):
    CDC Public Access
  • Main Document Checksum:
    urn:sha-512:fd98659e117a0d0e0dec13aff94f37f0b9c7f11a719ebd6c1438198546b2bd106771012a4247dbed24f306d1f54908e6b4b5c5e19af2a323a3badd4171b46738
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