Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study

Abstract Background Traditionally, hand hygiene (HH) interventions do not identify the observed healthcare workers (HWCs) and therefore, reflect HH compliance only at population level. Intensive care units (ICUs) in seven European hospitals participating in the “Prevention of Hospital Infections by...

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Main Authors: Tjallie van der Kooi, Hugo Sax, Hajo Grundmann, Didier Pittet, Sabine de Greeff, Jaap van Dissel, Lauren Clack, Albert W. Wu, Judith Davitt, Sofia Kostourou, Alison Maguinness, Anna Michalik, Viorica Nedelcu, Márta Patyi, Janja Perme Hajdinjak, Milena Prosen, David Tellez, Éva Varga, Fani Veini, Mirosław Ziętkiewicz, Walter Zingg, the PROHIBIT consortium
Format: Article
Language:English
Published: BMC 2022-10-01
Series:Antimicrobial Resistance and Infection Control
Subjects:
Online Access:https://doi.org/10.1186/s13756-022-01148-1
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author Tjallie van der Kooi
Hugo Sax
Hajo Grundmann
Didier Pittet
Sabine de Greeff
Jaap van Dissel
Lauren Clack
Albert W. Wu
Judith Davitt
Sofia Kostourou
Alison Maguinness
Anna Michalik
Viorica Nedelcu
Márta Patyi
Janja Perme Hajdinjak
Milena Prosen
David Tellez
Éva Varga
Fani Veini
Mirosław Ziętkiewicz
Walter Zingg
the PROHIBIT consortium
author_facet Tjallie van der Kooi
Hugo Sax
Hajo Grundmann
Didier Pittet
Sabine de Greeff
Jaap van Dissel
Lauren Clack
Albert W. Wu
Judith Davitt
Sofia Kostourou
Alison Maguinness
Anna Michalik
Viorica Nedelcu
Márta Patyi
Janja Perme Hajdinjak
Milena Prosen
David Tellez
Éva Varga
Fani Veini
Mirosław Ziętkiewicz
Walter Zingg
the PROHIBIT consortium
author_sort Tjallie van der Kooi
collection DOAJ
description Abstract Background Traditionally, hand hygiene (HH) interventions do not identify the observed healthcare workers (HWCs) and therefore, reflect HH compliance only at population level. Intensive care units (ICUs) in seven European hospitals participating in the “Prevention of Hospital Infections by Intervention and Training” (PROHIBIT) study provided individual HH compliance levels. We analysed these to understand the determinants and dynamics of individual change in relation to the overall intervention effect. Methods We included HCWs who contributed at least two observation sessions before and after intervention. Improving, non-changing, and worsening HCWs were defined with a threshold of 20% compliance change. We used multivariable linear regression and spearman’s rank correlation to estimate determinants for the individual response to the intervention and correlation to overall change. Swarm graphs visualized ICU-specific patterns. Results In total 280 HCWs contributed 17,748 HH opportunities during 2677 observation sessions. Overall, pooled HH compliance increased from 43.1 to 58.7%. The proportion of improving HCWs ranged from 33 to 95% among ICUs. The median HH increase per improving HCW ranged from 16 to 34 percentage points. ICU wide improvement correlated significantly with both the proportion of improving HCWs (ρ = 0.82 [95% CI 0.18–0.97], and their median HH increase (ρ = 0.79 [0.08–0.97]). Multilevel regression demonstrated that individual improvement was significantly associated with nurse profession, lower activity index, higher nurse-to-patient ratio, and lower baseline compliance. Conclusions Both the proportion of improving HCWs and their median individual improvement differed substantially among ICUs but correlated with the ICUs’ overall HH improvement. With comparable overall means the range in individual HH varied considerably between some hospitals, implying different transmission risks. Greater insight into improvement dynamics might help to design more effective HH interventions in the future.
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spelling doaj.art-4384fb3084b2497187210e0003f380ae2023-03-22T12:25:03ZengBMCAntimicrobial Resistance and Infection Control2047-29942022-10-011111910.1186/s13756-022-01148-1Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT studyTjallie van der Kooi0Hugo Sax1Hajo Grundmann2Didier Pittet3Sabine de Greeff4Jaap van Dissel5Lauren Clack6Albert W. Wu7Judith Davitt8Sofia Kostourou9Alison Maguinness10Anna Michalik11Viorica Nedelcu12Márta Patyi13Janja Perme Hajdinjak14Milena Prosen15David Tellez16Éva Varga17Fani Veini18Mirosław Ziętkiewicz19Walter Zingg20the PROHIBIT consortiumRIVM National Institute for Public Health and the EnvironmentDivision of Infectious Diseases and Hospital Epidemiology, University Hospital ZurichMedical Center – University of FreiburgUniversity of Geneva HospitalsRIVM National Institute for Public Health and the EnvironmentRIVM National Institute for Public Health and the EnvironmentDivision of Infectious Diseases and Hospital Epidemiology, University Hospital ZurichCenter for Health Services and Outcomes Research, Johns Hopkins University Bloomberg School of Public HealthGalway University HospitalEvangelismos HospitalSt. Michaels HospitalFaculty of Health Sciences, University of Bielsko-BialaEmergency Institute for Cardiovascular Diseases “Prof. C.C. Iliescu”Bács-Kiskun Megyei Kórház (County Teaching Hospital)University Medical Centre LjubljanaUniversity Medical Centre LjubljanaHospital Vall d’HebronBács-Kiskun Megyei Kórház (County Teaching Hospital)Evangelismos HospitalJohn Paul II HospitalDivision of Infectious Diseases and Hospital Epidemiology, University Hospital ZurichAbstract Background Traditionally, hand hygiene (HH) interventions do not identify the observed healthcare workers (HWCs) and therefore, reflect HH compliance only at population level. Intensive care units (ICUs) in seven European hospitals participating in the “Prevention of Hospital Infections by Intervention and Training” (PROHIBIT) study provided individual HH compliance levels. We analysed these to understand the determinants and dynamics of individual change in relation to the overall intervention effect. Methods We included HCWs who contributed at least two observation sessions before and after intervention. Improving, non-changing, and worsening HCWs were defined with a threshold of 20% compliance change. We used multivariable linear regression and spearman’s rank correlation to estimate determinants for the individual response to the intervention and correlation to overall change. Swarm graphs visualized ICU-specific patterns. Results In total 280 HCWs contributed 17,748 HH opportunities during 2677 observation sessions. Overall, pooled HH compliance increased from 43.1 to 58.7%. The proportion of improving HCWs ranged from 33 to 95% among ICUs. The median HH increase per improving HCW ranged from 16 to 34 percentage points. ICU wide improvement correlated significantly with both the proportion of improving HCWs (ρ = 0.82 [95% CI 0.18–0.97], and their median HH increase (ρ = 0.79 [0.08–0.97]). Multilevel regression demonstrated that individual improvement was significantly associated with nurse profession, lower activity index, higher nurse-to-patient ratio, and lower baseline compliance. Conclusions Both the proportion of improving HCWs and their median individual improvement differed substantially among ICUs but correlated with the ICUs’ overall HH improvement. With comparable overall means the range in individual HH varied considerably between some hospitals, implying different transmission risks. Greater insight into improvement dynamics might help to design more effective HH interventions in the future.https://doi.org/10.1186/s13756-022-01148-1Hand hygieneActivity indexIndividualInterventionIntensive careMulticentre
spellingShingle Tjallie van der Kooi
Hugo Sax
Hajo Grundmann
Didier Pittet
Sabine de Greeff
Jaap van Dissel
Lauren Clack
Albert W. Wu
Judith Davitt
Sofia Kostourou
Alison Maguinness
Anna Michalik
Viorica Nedelcu
Márta Patyi
Janja Perme Hajdinjak
Milena Prosen
David Tellez
Éva Varga
Fani Veini
Mirosław Ziętkiewicz
Walter Zingg
the PROHIBIT consortium
Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study
Antimicrobial Resistance and Infection Control
Hand hygiene
Activity index
Individual
Intervention
Intensive care
Multicentre
title Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study
title_full Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study
title_fullStr Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study
title_full_unstemmed Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study
title_short Hand hygiene improvement of individual healthcare workers: results of the multicentre PROHIBIT study
title_sort hand hygiene improvement of individual healthcare workers results of the multicentre prohibit study
topic Hand hygiene
Activity index
Individual
Intervention
Intensive care
Multicentre
url https://doi.org/10.1186/s13756-022-01148-1
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