Capability, Opportunity, Motivation, and Hand Hygiene Behavior in Healthcare Workers: A Structural Equation Modeling

Hand hygiene among healthcare workers is the leading measure to reduce healthcare-associated infections. However, hand hygiene behavior is complex and not readily understood. This study aimed to identify the determinants and the underlying mechanism of hand hygiene behavior based on the capability, opportunity, motivation-behavior model.

A self-constructed questionnaire survey was conducted among healthcare workers in Chongqing, China. Capability, opportunity, and motivation were designed as independent variables, and hand hygiene behavior was measured as a dependent variable. Internal consistency reliability analysis and confirmatory factor analysis were applied to examine the reliability and validity of the questionnaire. Structural equation modeling was performed to explore the relationships among capability, opportunity, motivation, and hand hygiene behavior.

Four hundred and ninety-nine physicians and nurses were investigated. The Cronbach's α coefficients were above 0.764. Confirmatory factor analysis was confirmed with good data fitness. The structural equation modeling had a good fit (root mean square error of approximation=0.070, comparative fit index=0.960, Tucker-Lewis index=0.956). Both opportunity (β=0.265, p<0.05) and motivation (β=0.333, p<0.05) directly affected hand hygiene behavior. Both capability (β=0.194, p<0.001) and opportunity (β=0.719, p<0.001) were indirectly linked to hand hygiene behavior through motivation.

To improve hand hygiene behavior, more efforts need to be focused on resource provision and motivation enhancement in the future compared to training.