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12-Aug-2014

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Contact: Maya Sandler
medicinepress@plos.org
PLOS

Hand sanitizers in classrooms do not reduce school absences in children

Installing alcohol-based hand sanitizer dispensers in the classrooms does not lead to reductions in the rate of school absences in children, according to a study published in this week's PLOS Medicine led by Patricia Priest and colleagues from the University of Otago, New Zealand.

The researchers conducted a cluster randomized trial that that randomly assigned 68 city primary schools in New Zealand to the intervention or control group and measured the rate of school absence in children (aged 5󈝷 years) attending the participating schools. All children received a 30-minute in-class hand hygiene education session. In those schools randomly assigned to the intervention group, alcohol-based hand sanitizer dispensers were installed in the classrooms over two winter terms and the children were asked to use the dispensers after coughing or sneezing and on the way out of the classroom for morning break or lunch.

In the 2443 children whose caregivers agreed to be telephoned about the reason for absence, the researchers report that the rate of school absences due to any illness was similar in the intervention and control schools. Moreover, among these children, the provision of a hand sanitizer did not reduce the number of absences due to a specific illness (respiratory or gastrointestinal), the length of illness and length of absence from school, or the number of episodes in which at least one other family member became ill. When using school attendance records from all children in the participating schools, the number of absences for any reason and length of absence episode did not differ between the intervention and control schools.

While these findings suggest that providing hand sanitizer in classrooms may not be an effective way to reduce child-to-child transmission of infectious diseases in high income countries, there are some limitations to the study. For example, the trial was undertaken during an influenza epidemic, therefore influenza-related public-health messages about good hand hygiene may have increased hand hygiene among all the children in the study and obscured any effectiveness of the intervention. Furthermore, the generalizability of the findings to other high income countries is unclear.

The authors say: "The provision of hand sanitizers in addition to usual hand hygiene in primary schools in New Zealand did not prevent disease of severity sufficient to cause school absence."

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Research Article

Funding: The study was funded by the Health Research Council of New Zealand through a project grant (08/368). The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Competing Interests: The authors have declared that no competing interests exist. All authors affirm that they are not involved in any other trials on the same or a related intervention.

Citation: Priest P, McKenzie JE, Audas R, Poore M, Brunton C, et al. (2014) Hand Sanitiser Provision for Reducing Illness Absences in Primary School Children: A Cluster Randomised Trial. PLoS Med 11(8): e1001700. doi:10.1371/journal.pmed.1001700

Author Affiliations:

Dunedin School of Medicine, University of Otago, NEW ZEALAND

School of Public Health and Preventive Medicine, Monash University, AUSTRALIA

Memorial University of Newfoundland, CANADA

Southern District Health Board, NEW ZEALAND

Canterbury District Health Board, NEW ZEALAND

PRESS-ONLY PREVIEW OF THE ARTICLE:

http://www.plos.org/wp-content/uploads/2013/05/plme-11-08-Priest.pdf

IN YOUR COVERAGE PLEASE USE THIS URL TO PROVIDE ACCESS TO THE FREELY AVAILABLE PAPER:

http://www.plosmedicine.org/article/info%3Adoi%2F10.1371%2Fjournal.pmed.1001700

Contact:

Patricia Priest
University of Otago
NEW ZEALAND
+64 3 4797204
patricia.priest@otago.ac.nz



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