This week's coverage in Infection Control Today centered on a common thread: the systems, partnerships, and data that let infection prevention teams catch problems before patients are harmed.
|Articles|August 4, 2013
Researchers Examine HCW Ring Wearing and Potential for HAI Transmission
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Tens of thousands of healthcare workers worldwide can only wear a plain wedding ring at work, if any at all. This arose from policies citing early laboratory evidence that rings can carry clinically relevant bacteria, but with little supporting clinical data. Dyar, et al. (2013) say that policies that are both invasive and perceived as lacking evidence create a broader scepticism of infection control guidelines; it is therefore important to regularly review the evidence for such guidance.
A systematic literature review was performed of studies investigating the infection risk of ring wearing by healthcare workers. PubMed, Cochrane Library and clinical trials registries were searched. Data was extracted on study design and quality, and the following outcomes: healthcare-acquired infection (HAI) rates, bacterial transmission, and bacterial contamination of healthcare workers hands.
Two interventional randomized controlled trials (RCTs) and 10 observational studies were identified. No study investigated an association between ring wearing and HAI rates. The RCTs were very small and used hand colonization as the primary outcome. One RCT found higher colonization of hands of healthcare wokers randomised to wear rings than those not wearing rings, whereas the other RCT found no difference. One observational study assessed bacterial transmission through handshaking and found the presence of a ring did not result in higher transmission. Three observational studies found higher bacterial contamination of hands with rings, and five studies found no difference. The presence of rings did not result in higher contamination after handwashing in most studies. No study identified a significant increase in hand contamination with multiple rings compared with one ring, nor between different types of ring.
The researchers conclude that no direct evidence was found that healthcare workers wearing rings results in higher HAI or bacterial transmission rates. Most studies did not identify higher contamination associated with ring wearing; furthermore, the clinical significance of a statistical difference in the number of colony forming units is unclear. They add that guidelines could benefit from reconsidering ring wearing guidance, and focusing on interventions with a more defined evidence base; fewer intrusions into healthcare workers personal autonomy may increase willingness to participate in other important interventions.
Reference: Dyar A and Dyar OJ. Poster presentation P156 at the 2nd International Conference on Prevention and Infection Control (ICPIC 2013): Ring wearing in healthcare settings: an evidence-based update. Antimicrobial Resistance and Infection Control 2013, 2(Suppl 1):P156 doi:10.1186/2047-2994-2-S1-P156
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