Karnofsky score

The Karnofsky score is an assessment of an individual's health and wellbeing, based on a performance index of physical ability. It is often used in clinical research to monitor and record the health of patients. The criteria and ranking are:

  • 100% - normal, no complaints or signs of disease.
  • 90% - normal activities, slight symptoms or signs of disease.
  • 80% - normal activity with effort, some symptoms or signs of disease.
  • 70% - can take care of self, but not engage in normal or work activities.
  • 60% - requires occasional assistance, but can take care of most needs.
  • 50% - requires frequent help and medical care.
  • 40% - disabled and needs special care and assistance.
  • 30% - severely disabled, hospital admission indicated, but no risk of death.
  • 20% - very ill, requires hospitalisation and supportive measures/treatment urgently.
  • 10% - approaching death with rapidly progressive fatal disease processes.
  • 0% - death.
This content was checked for accuracy at the time it was written. It may have been superseded by more recent developments. NAM recommends checking whether this is the most current information when making decisions that may affect your health.