Table 1

Probability of using proper hand hygiene before and after the intervention

UnitClinician typeNumber of interactionsProbability of proper hygiene: before (%)Probability of using proper hygiene: after (%)Improvement after intervention* (%)p Value of improvement
CardiologyNurse60327.839.311.50.004
Doctor2406.43.8−2.50.552
Overall84322.926.53.50.272
Emergency departmentNurse50219.240.721.4<0.001
Doctor3817.750.542.8<0.001
Overall88314.344.930.6<0.001
GeriatricsNurse42520.928.17.20.169
Doctor18112.836.623.80.004
Overall60618.530.612.10.004
Infectious diseasesNurse42744.972.127.2<0.001
Doctor30925.254.929.8<0.001
Overall73636.664.828.2<0.001
OphthalmologyNurse50456.564.17.60.102
Doctor41566.166.80.70.965
Overall91960.965.34.40.191
All unitsNurse246133.747.914.2<0.001
Doctor152627.546.619.1<0.001
Overall398731.547.415.9<0.001
  • *Absolute percent improvement (%after−%before). As the before and after percentages reported in the table are rounded, the improvement reported in the table may differ slightly from one that is calculated from these two percentages.