Improving the communication of hand hygiene procedures: Controlled observation, redesign, and randomized group comparisons

• DOI: 10.1017/ice.2020.407
• Publication Date: 2020-09-08T06:26:22Z
• Authors: Francis T. Durso; Sweta Parmar; Ryan S. Heidish; Skyler Tordoya He...; Omer S. Oncul; Jesse T. Jacob
• Keywords: Cross Infection; Communication; Hand; World Health Organization; 16. Peace & justice; 3. Good health; 03 medical and health sciences; 0302 clinical medicine; Humans; Original Article; Hand Hygiene; Hand Disinfection

Abstract Objective: To assess the clarity and efficacy of World Health Organization (WHO) hand-rub diagram, develop a modified version, compare 2 diagrams. Design: Randomized group design preceded by controlled observation iterative product redesigns. Setting: The Cognitive Ergonomics Lab in School Psychology at Georgia Institute Technology. Participants: We included participants who were unfamiliar with WHO diagram (convenience sampling) to ensure that performance was based on not, for example, prior experience. Methods: iterated through steps human factors procedure: (1) Participants simulated hand hygiene using ultraviolet (UV) absorbent lotion technique (ie, or redesign). (2) Coverage, confusion judgments, behavioral videos informed potentially improved And (3) redesigned diagrams compared version randomized design. Coverage assessed across 72 areas from multiple UV photographs. Results: led omissions hand-surface coverage, including inadequate coverage up 75% ulnar edge. redesigns significantly overall often substantially. Conclusions: Human modification reduced naïve users. Implementation an should help prevention healthcare-associated infections.