Figure 3

User frequency of the ABHR dispensers during the four periods. During period 2 the dispensers at location 1 and location 2 were used more frequently than the dispenser at location 3 (p < 0.001). During period 3 the dispenser at location 2 was used more frequently than the dispenser at location 3 (p < 0.001). ● Total dispenses per day differed significantly from other dispensers in use during same period (p < 0.001).