Review of 6-step vs 3-step hand hygiene technique

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To evaluate the microbiologic effectiveness of the World Health Organization’s 6-step and the Centers for Disease Control and Prevention’s 3-step hand hygiene techniques using alcohol-based handrub” Reilly et al (2016).

Abstract:

OBJECTIVE: To evaluate the microbiologic effectiveness of the World Health Organization’s 6-step and the Centers for Disease Control and Prevention’s 3-step hand hygiene techniques using alcohol-based handrub.

DESIGN: A parallel group randomized controlled trial.

SETTING: An acute care inner-city teaching hospital (Glasgow).

PARTICIPANTS: Doctors (n=42) and nurses (n=78) undertaking direct patient care.

INTERVENTION: Random 1:1 allocation of the 6-step (n=60) or the 3-step (n=60) technique.
RESULTS The 6-step technique was microbiologically more effective at reducing the median log10 bacterial count. The 6-step technique reduced the count from 3.28 CFU/mL (95% CI, 3.11–3.38 CFU/mL) to 2.58 CFU/mL (2.08–2.93 CFU/mL), whereas the 3-step reduced it from 3.08 CFU/mL (2.977–3.27 CFU/mL) to 2.88 CFU/mL (−2.58 to 3.15 CFU/mL) (P=.02). However, the 6-step technique did not increase the total hand coverage area (98.8% vs 99.0%, P=.15) and required 15% (95% CI, 6%-24%) more time (42.50 seconds vs 35.0 seconds, P=.002). Total hand coverage was not related to the reduction in bacterial count.

CONCLUSIONS: Two techniques for hand hygiene using alcohol-based handrub are promoted in international guidance, the 6-step by the World Health Organization and 3-step by the Centers for Disease Control and Prevention. The study provides the first evidence in a randomized controlled trial that the 6-step technique is superior, thus these international guidance documents should consider this evidence, as should healthcare organizations using the 3-step technique in practice.

Reference:

Reilly, J.S., Price, L., Lang, S., Robertson, C., Cheater, F., Skinner, K. and Chow, A. (2016) A Pragmatic Randomized Controlled Trial of 6-Step vs 3-Step Hand Hygiene Technique in Acute Hospital Care in the United Kingdom. April 7th. [epub ahead of print].

DOI: http://dx.doi.org/10.1017/ice.2016.51

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