Observer bias in hand hygiene compliance reporting

Infect Control Hosp Epidemiol. 2010 Aug;31(8):869-70. doi: 10.1086/655441.


Differences in reported hand hygiene compliance rates were assessed on the basis of the unit affiliation of observers. In 2 hospitals, unit-based observers more often reported higher compliance rates than did non-unit-based observers (79% vs 58.6%; difference, 20.4%; P<.001). Nonstandardized data collection methods contribute to the variability in hand hygiene compliance rates.

MeSH terms

  • Effect Modifier, Epidemiologic
  • Guideline Adherence / statistics & numerical data*
  • Hand Disinfection*
  • Hospital Units
  • Humans
  • Hygiene / standards*
  • Infection Control / methods
  • Observation / methods
  • Observer Variation*
  • Personnel, Hospital