Table 1

Operational definitions for measures

Hand hygiene compliance rateNumber of hand hygiene actions performed (ie, hand washing with soap and water or rubbing hands with alcohol-based hand sanitiser). Hand hygiene action is only valid once with every hand hygiene opportunity.Number of hand hygiene opportunities observedHand hygiene compliance (%)=number of hand hygiene actions performed/
number of hand hygiene opportunities observed x 100
Alcohol hand rub usageNot applicableNot applicableUsage of alcohol hand rub in litres
Methicillin-resistant Staphylococcus aureus (MRSA) rateNumber of MRSA positive patients on exitNumber of patients screenedMRSA rate=number of MRSA positive patients on exit/number of patients screened