Figure 1. Logistic regression analysis showed the probability for individuals to wash their hands was different across the four conditions: control, visual, auditory, and odor (p < 0.001).

Compared to the control, visual and auditory disgust conditions showed a significant increase in Prospective Memory (PM) task initiation (p < 0.05 each) while odor showed a larger significant increase (p < 0.001). Additionally, odor was significantly larger than both the visual and auditory disgust conditions (p < 0.01).