Background: Hand hygiene plays a crucial role in the prevention of healthcare-associated infections and transmission of pathogens. In 2008 the national campaign 'Aktion Saubere Hände' was launched in Germany. It is based on the World Health Organization (WHO) 'Clean Care is Safer Care' initiative. Direct observation and feedback of the results are key components in the improvement of hand hygiene compliance. In 2014 a voluntary national surveillance electronic tool for the documentation of directly observed compliance to hand hygiene was introduced.
Aim: Description and evaluation of compliance with the WHO model 'my 5 moments' in German hospitals after implementation.
Methods: Direct observation was performed in the participating hospitals by trained local staff according to the WHO recommendations. We evaluated wards that reported annually at least 150 hand hygiene opportunities (HHOs) of hand hygiene per observation period from January 1st, 2015 until December 31st, 2018.
Findings: In all, 1,485,622 HHOs observed on 3337 wards in 525 hospitals were included into analysis. Overall compliance increased from 72% (interquartile range: 61-82) to 76% (66-84). Compliance significantly increased for all individual moments of the WHO model except moment 2. In the multivariate logistic regression analysis the following parameters were independently associated with a high compliance in hand hygiene: intensive care unit, nurse, opportunity observed in 2017 or 2018, as well as all moments except moment 2.
Conclusion: Overall compliance in German hospitals increased over time. To improve HH compliance 'before aseptic procedures' appears to be difficult and should be addressed explicitly. Underlying reasons need to be the focus of future investigations.
Keywords: Aktion Saubere Hände; Campaign; Compliance; Hand hygiene; Infection prevention; Surveillance; WHO model.
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