This study assessed the correlation between healthcare workers’ hand hygiene compliance (HHC) and hospital-acquired infections (HAI) in high-income healthcare settings. The authors identified 35 studies for their analysis, with hand hygiene compliance at 60% or more were generally associated with a lower HAI rates. However, study designs and risk of bias did not allow the authors to infer any cause-effect relationship between the two factors. The key takeaway message of this article is that HHC is important in HAI reduction and more research with better study design is required to be able to determine the optimal HHC level in this role. I will use this source to support the argument that hand hygiene is important in HAI control even at the 60% or higher level of compliance.

Mouajou, V., Adams, K., DeLisle, G., & Quach, C. (2022). Hand hygiene compliance in the prevention of hospital-acquired infections: A systematic review. Journal of Hospital Infection, 119, 33–48. https://doi.org/10.1016/j.jhin.2021.09.016