Impact of bare below the elbows on hand hygiene

A new study in the Journal of Hospital Infection evaluated the quality of hand hygiene in physicians and medical students using an alcohol based product that contained a fluorescent marker, which allowed for a highly quantitative measure of surface area that was decontaminated. (I'll post a link to the PubMed citation as soon as it's available). Hand hygiene effectiveness was compared between study subjects who were bare below the elbow and those who were not. As might be predicted, there was no difference in decontamination of hands between the two groups; however, decontamination of wrists was significantly better in the bare-below-the-elbows group.