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Epidemiologic Characteristics of Orthopedic Surgical Site Infections and Under-Reporting Estimation of Registries Using Capture-Recapture Analysis Publisher Pubmed



Taherpour N1 ; Mehrabi Y1 ; Seifi A2 ; Eshrati B3 ; Hashemi Nazari SS4, 5
Authors
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Authors Affiliations
  1. 1. Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Department of Infectious Diseases, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Center for Preventive Medicine, Department of Social Medicine, Iran University of Medical Sciences, Tehran, Iran
  4. 4. Prevention of Cardiovascular Disease Research Center, Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  5. 5. School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Daneshjoo Blvd, Evin Ave, Tehran, 198353-5511, Iran

Source: BMC Infectious Diseases Published:2021


Abstract

Background: Surgical Site Infections (SSIs) are among the leading causes of the postoperative complications. This study aimed at investigating the epidemiologic characteristics of orthopedic SSIs and estimating the under-reporting of registries using the capture-recapture method. Methods: This study, which was a registry-based, cross-sectional one, was conducted in six educational hospitals in Tehran during a one-year period, from March, 2017 to March, 2018. The data were collected from two hospital registries (National Nosocomial Infection Surveillance System (NNIS) and Health Information Management database (HIM)). First, all orthopedic SSIs registered in these sources were used to perform capture-recapture (N = 503). Second, 202 samples were randomly selected to assess patients` characteristics. Results: Totally, 76.24% of SSIs were detected post-discharge. Staphylococcus aureus (11.38%) was the most frequently detected bacterium in orthopedic SSIs. The median time between the detection of a SSI and the discharge was 17 days. The results of a study done on 503 SSIs showed that the coverage of NNIS and HIM was 59.95 and 65.17%, respectively. After capture-recapture estimation, it was found that about 221 of orthopedic SSIs were not detected by two sources among six hospitals and the real number of SSIs were estimated to be 623 ± 36.58 (95% CI, 552–695) and under-reporting percentage was 63.32%. Conclusion: To recognize the trends of SSIs mortality and morbidity in national level, it is significant to have access to a registry with minimum underestimated data. Therefore, according to the weak coverage of NNIS and HIM among Iranian hospitals, a plan for promoting the national Infection Prevention and Control (IPC) programs and providing updated protocols is recommended. © 2021, The Author(s).