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Evaluation of the costing methodology of published studies estimating costs of surgical site infections: A systematic review

Published online by Cambridge University Press:  23 September 2021

Raghda Hassan Shaaban Open the ORCID record for Raghda Hassan Shaaban [Opens in a new window] ,
Omaima Gaber Yassine ,
Ramez Naguib Bedwani  and
Ghada Ahmed Abu-Sheasha
Raghda Hassan Shaaban*
Affiliation:
Biomedical Informatics & Medical Statistics Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
Omaima Gaber Yassine
Affiliation:
Biomedical Informatics & Medical Statistics Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
Ramez Naguib Bedwani
Affiliation:
Biomedical Informatics & Medical Statistics Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
Ghada Ahmed Abu-Sheasha
Affiliation:
Biomedical Informatics & Medical Statistics Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
*
Author for correspondence: Raghda Hassan Shaaban, E-mail: raghdahassan@alexu.edu.eg or dr.raghdahassan@yahoo.com
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Abstract

Objectives:

Surgical site infections (SSIs) are associated with increased length of hospitalization and costs. Epidemiologists and infection control practitioners, who are in charge of implementing infection control measures, have to assess the quality and relevance of the published SSI cost estimates before using them to support their decisions. In this review, we aimed to determine the distribution and trend of analytical methodologies used to estimate cost of SSIs, to evaluate the quality of costing methods and the transparency of cost estimates, and to assess whether researchers were more inclined to use transferable studies.

Methods:

We searched MEDLINE to identify published studies that estimated costs of SSIs from 2007 to March 2021, determined the analytical methodologies, and evaluated transferability of studies based on 2 evaluation axes. We compared the number of citations by transferability axes.

Results:

We included 70 studies in our review. Matching and regression analysis represented 83% of analytical methodologies used without change over time. Most studies adopted a hospital perspective, included inpatient costs, and excluded postdischarge costs (borne by patients, caregivers, and community health services). Few studies had high transferability. Studies with high transferability levels were more likely to be cited.

Conclusions:

Most of the studies used methodologies that control for confounding factors to minimize bias. After the article by Fukuda et al, there was no significant improvement in the transferability of published studies; however, transferable studies became more likely to be cited, indicating increased awareness about fundamentals in costing methodologies.

Type
Review
Information
Infection Control & Hospital Epidemiology , Volume 43 , Issue 7 , July 2022 , pp. 898 - 914
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Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of The Society for Healthcare Epidemiology of America

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