Multimodal intervention program to improve hand hygiene compliance: effectiveness and challenges

Hand hygiene (HH) is considered the most important measure to tackle the transmission of healthcare-associated pathogens. However, compliance with recommendations is usually low and effective improvement strategies are needed. We aimed to assess the effectiveness of an intervention targeting hand hygiene promotion among healthcare workers (HCWs).

We conducted a pre-post interventional study design in the university hospital Sahloul, Sousse, Tunisia, from January 2015 to December 2016. The intervention program consisted of training sessions and distribution of posters of hand hygiene guidelines. To assess the evolution of HH observance at pre- and post-intervention, the same observation form was distributed and collected at healthcare workers' workplace.

Of the 1201 and 1057 opportunities for hand hygiene observed among all categories of HCWs, overall compliance enhanced significantly from 32.1 to 39.4% (p < 0.001) respectively at pre- and post-intervention. Nurses were the most compliant with a significant improvement from 34.1 to 45.7% (p < 0.001) respectively at pre- and post-intervention. Furthermore, analysis by department showed significant improvement of compliance in orthopedic department (p < 0.001), maxillofacial-surgery department (p < 0.001), pediatrics department (p = 0.013), and emergencies (p = 0.038).

This study showed the feasibility and effectiveness of a health-setting-based intervention to enhance hand hygiene observance in the context of a developing country.