Effect of a multifaceted intervention on adherence to hand hygiene among healthcare workers: A cluster-randomized trial

D. Mertz, S.D. Walter, K. Brazil, M. Loeb, N. Dafoe

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

OBJECTIVES. Adherence to hand hygiene among healthcare workers (HCWs) is widely believed to be a key factor in reducing the spread of healthcare-associated infection. The objective of this study was to evaluate the impact of a multifaceted intervention to increase rates of adherence to hand hygiene among HCWs and to assess the effect on the incidence of hospital-acquired methicillin-resistant Staphylococcus aureus (MRSA) colonization. DESIGN. Cluster-randomized controlled trial. SETTING. Thirty hospital units in 3 tertiary care hospitals in Hamilton, Ontario, Canada. INTERVENTION. After a 3-month baseline period of data collection, 15 units were randomly assigned to the intervention arm (with performance feedback, small-group teaching seminars, and posters) and 15 units to usual practice. Hand hygiene was observed during randomly selected 15-minute periods on each unit, and the incidence of MRSA colonization was measured using weekly surveillance specimens from June 2007 through May 2008. RESULTS. We found that 3,812 (48.2%) of 7,901 opportunities for hand hygiene in the intervention group resulted in adherence, compared with 3,205 (42.6%) of 7,526 opportunities in the control group (P <.001; independent t test). There was no reduction in the incidence of hospital-acquired MRSA colonization in the intervention group. CONCLUSION. Among HCWs in Ontario tertiary care hospitals, the rate of adherence to hand hygiene had a statistically significant increase of 6% with a multifaceted intervention, but the incidence of MRSA colonization was not reduced.
Original languageEnglish
Pages (from-to)1170-1176
Number of pages7
JournalInfection Control and Hospital Epidemiology
Volume31
Issue number11
DOIs
Publication statusPublished - 01 Nov 2010

ASJC Scopus subject areas

  • Microbiology (medical)
  • Epidemiology
  • Infectious Diseases

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