Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best?
Background. In 2012, the South African (SA) National Department of Health mandated surveillance of healthcare-associated infection (HAI), but made no recommendations of appropriate surveillance methods. Methods. Prospective clinical HAI surveillance (the reference method) was conducted at Tygerberg...
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doaj-9a2e594452be4789905f9fc21f6a646f2020-11-24T23:33:53ZengHealth and Medical Publishing GroupSouth African Medical Journal0256-95742078-51352017-01-011071566310.7196/SAMJ.2017.v107i1.11431Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best?A Dramowski0M F Cotton1A Whitelaw2Department of Paediatrics and Child Health, Division of Paediatric Infectious Diseases, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa Department of Paediatrics and Child Health, Division of Paediatric Infectious Diseases, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South AfricaDivision of Medical Microbiology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University and National Health Laboratory Service, Tygerberg Hospital, Cape Town, South AfricaBackground. In 2012, the South African (SA) National Department of Health mandated surveillance of healthcare-associated infection (HAI), but made no recommendations of appropriate surveillance methods. Methods. Prospective clinical HAI surveillance (the reference method) was conducted at Tygerberg Children’s Hospital, Cape Town, from 1 May to 31 October 2015. Performance of three surveillance methods (point prevalence surveys (PPSs), laboratory surveillance and tracking of antimicrobial prescriptions) was compared with the reference method using surveillance evaluation guidelines. Factors associated with failure to detect HAI were identified by logistic regression analysis. Results. The reference method detected 417 HAIs among 1 347 paediatric hospitalisations (HAI incidence of 31/1000 patient days; 95% confidence interval (CI) 28.2 - 34.2). Surveillance methods had variable sensitivity (S) and positive predictive value (PPV): PPS S = 24.9% (95% CI 21 - 29.3), PPV = 100%; laboratory surveillance S = 48.4% (95% CI 43.7 - 53.2), PPV = 55.2% (95% CI 50.1 - 60.2); and antimicrobial prescriptions S = 66.4% (95% CI 61.8 - 70.8%), PPV = 88.5% (95% CI 84.5 - 91.6). Combined laboratory-antimicrobial surveillance achieved superior HAI detection (S = 84.7% (95% CI 80.9 - 87.8%), PPV = 97% (95% CI 94.6 - 98.4%)). Factors associated with failure to detect HAI included patient transfer (odds ratio (OR) 2.0), single HAI event (OR 2.8), age category 1 - 5 years (OR 2.1) and hospitalisation in a general ward (OR 2.3). Conclusions. Repeated PPSs, laboratory surveillance and/or antimicrobial prescription tracking are feasible HAI surveillance methods for low-resource settings. Combined laboratory-antimicrobial surveillance achieved the best sensitivity and PPV. SA paediatric healthcare facilities should individualise HAI surveillance, selecting a method suited to available resources and practice context. http://www.samj.org.za/index.php/samj/article/view/11764/7912PaediatricsIntensive care unitHealthcare-associated infectionSurveillanceInfection preventionSub-Saharan AfricaNosocomial infectionAntimicrobial |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A Dramowski M F Cotton A Whitelaw |
spellingShingle |
A Dramowski M F Cotton A Whitelaw Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best? South African Medical Journal Paediatrics Intensive care unit Healthcare-associated infection Surveillance Infection prevention Sub-Saharan Africa Nosocomial infection Antimicrobial |
author_facet |
A Dramowski M F Cotton A Whitelaw |
author_sort |
A Dramowski |
title |
Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best? |
title_short |
Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best? |
title_full |
Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best? |
title_fullStr |
Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best? |
title_full_unstemmed |
Surveillance of healthcare-associated infection in hospitalised South African children: Which method performs best? |
title_sort |
surveillance of healthcare-associated infection in hospitalised south african children: which method performs best? |
publisher |
Health and Medical Publishing Group |
series |
South African Medical Journal |
issn |
0256-9574 2078-5135 |
publishDate |
2017-01-01 |
description |
Background. In 2012, the South African (SA) National Department of Health mandated surveillance of healthcare-associated infection (HAI), but made no recommendations of appropriate surveillance methods.
Methods. Prospective clinical HAI surveillance (the reference method) was conducted at Tygerberg Children’s Hospital, Cape Town, from 1 May to 31 October 2015. Performance of three surveillance methods (point prevalence surveys (PPSs), laboratory surveillance and tracking of antimicrobial prescriptions) was compared with the reference method using surveillance evaluation guidelines. Factors associated with failure to detect HAI were identified by logistic regression analysis.
Results. The reference method detected 417 HAIs among 1 347 paediatric hospitalisations (HAI incidence of 31/1000 patient days; 95% confidence interval (CI) 28.2 - 34.2). Surveillance methods had variable sensitivity (S) and positive predictive value (PPV): PPS S = 24.9% (95% CI 21 - 29.3), PPV = 100%; laboratory surveillance S = 48.4% (95% CI 43.7 - 53.2), PPV = 55.2% (95% CI 50.1 - 60.2); and antimicrobial prescriptions S = 66.4% (95% CI 61.8 - 70.8%), PPV = 88.5% (95% CI 84.5 - 91.6). Combined laboratory-antimicrobial surveillance achieved superior HAI detection (S = 84.7% (95% CI 80.9 - 87.8%), PPV = 97% (95% CI 94.6 - 98.4%)). Factors associated with failure to detect HAI included patient transfer (odds ratio (OR) 2.0), single HAI event (OR 2.8), age category 1 - 5 years (OR 2.1) and hospitalisation in a general ward (OR 2.3).
Conclusions. Repeated PPSs, laboratory surveillance and/or antimicrobial prescription tracking are feasible HAI surveillance methods for low-resource settings. Combined laboratory-antimicrobial surveillance achieved the best sensitivity and PPV. SA paediatric healthcare facilities should individualise HAI surveillance, selecting a method suited to available resources and practice context.
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topic |
Paediatrics Intensive care unit Healthcare-associated infection Surveillance Infection prevention Sub-Saharan Africa Nosocomial infection Antimicrobial |
url |
http://www.samj.org.za/index.php/samj/article/view/11764/7912 |
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AT adramowski surveillanceofhealthcareassociatedinfectioninhospitalisedsouthafricanchildrenwhichmethodperformsbest AT mfcotton surveillanceofhealthcareassociatedinfectioninhospitalisedsouthafricanchildrenwhichmethodperformsbest AT awhitelaw surveillanceofhealthcareassociatedinfectioninhospitalisedsouthafricanchildrenwhichmethodperformsbest |
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