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Updated: Mar 12, 2026

A Method to Test the Efficacy of Handwashing for the Removal of Emerging Infectious Pathogens
Published on: June 7, 2017
Continued direct observation and feedback of hand hygiene adherence can result in long-term improvement
Kazumi Arise1, Sayaka Nishizaki1, Tamae Morita2
1Department of Infection Control and Prevention, Kochi Medical School Hospital, Nankoku, Japan.
Background:
Hospital-wide multifaceted approaches can improve hand hygiene compliance in health care workers. However, the true effects of monitoring and feedback interventions are not clear.
Methods:
Hand hygiene compliance was evaluated by applying direct observation techniques over 5 years (2005-2009) in a tertiary care general hospital in Japan. The observed results were periodically reported as feedback to the health care workers.
Results:
The overall hand hygiene compliance rate increased from 50.8% in 2005 to 61.0% in 2006 (P = .004) and was sustained at approximately 60% through the completion of the study. The compliance rate for the indication before entering the room increased from 2005 to 2009 (P = .005). The compliance rates for 4 before patient contact indications increased from 2005 to 2009 (P = .002). The combined compliance rate for the 6 indications with the lowest compliance rates in 2005 increased from 2005 to 2009 (P = .001).
Conclusions:
Direct observation and feedback methods are effective strategies that resulted in a long-lasting improvement in hand hygiene compliance that was sustained over 5 years through the completion of the study. Focusing on the procedures with high baseline noncompliance rates can be an effective way to improve the overall compliance.
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