Percentage of compliant HH encounters on 2 inpatient units: p-chart shows the primary outcome measure with annotations of test of change. Percentage of compliant HH encounters on 2 inpatient units: p-chart shows the primary outcome measure with annotations of test of change. The x axis is labeled with every other week or month, and data points are weekly until June 2014 when they were measured monthly. Heather S. McLean et al. Hospital Pediatrics 2017;7:189-196 ©2017 by American Academy of Pediatrics