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Correcting for bias when estimating the cost of hospital‐acquired infection: an analysis of lower respiratory tract infections in non‐surgical patients

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  • Nicholas Graves
  • Diana Weinhold
  • Jennifer A. Roberts

Abstract

Hospital acquired infections (HAI) are costly but many are avoidable. Evaluating prevention programmes requires data on their costs and benefits. Estimating the actual costs of HAI (a measure of the cost savings due to prevention) is difficult as HAI changes cost by extending patient length of stay, yet, length of stay is a major risk factor for HAI. This endogeneity bias can confound attempts to measure accurately the cost of HAI. We propose a two‐stage instrumental variables estimation strategy that explicitly controls for the endogeneity between risk of HAI and length of stay. We find that a 10% reduction in ex ante risk of HAI results in an expected savings of £693 ($US 984). Copyright © 2005 John Wiley & Sons, Ltd.

Suggested Citation

  • Nicholas Graves & Diana Weinhold & Jennifer A. Roberts, 2005. "Correcting for bias when estimating the cost of hospital‐acquired infection: an analysis of lower respiratory tract infections in non‐surgical patients," Health Economics, John Wiley & Sons, Ltd., vol. 14(7), pages 755-761, July.
    • Handle: RePEc:wly:hlthec:v:14:y:2005:i:7:p:755-761
    DOI: 10.1002/hec.967
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    1. Kuchler, Fred & Golan, Elise H., 1999. "Assigning Values To Life: Comparing Methods For Valuing Health Risks," Agricultural Economic Reports 34037, United States Department of Agriculture, Economic Research Service.
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    1. Andrea Gentili & Marcello Di Pumpo & Daniele Ignazio La Milia & Doriana Vallone & Gino Vangi & Maria Incoronata Corbo & Filippo Berloco & Andrea Cambieri & Gianfranco Damiani & Walter Ricciardi & Patr, 2020. "A Six-Year Point Prevalence Survey of Healthcare-Associated Infections in an Italian Teaching Acute Care Hospital," IJERPH, MDPI, vol. 17(21), pages 1-8, October.

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