The KPS score is assigned based on the patient’s ability to perform daily activities and their need for assistance. Here is a simplified breakdown: - 100: Normal, no complaints, no evidence of disease. - 90: Able to carry on normal activity; minor signs or symptoms of disease. - 80: Normal activity with effort; some signs or symptoms of disease. - 70: Cares for self; unable to carry on normal activity or do active work. - 60: Requires occasional assistance but is able to care for most needs. - 50: Requires considerable assistance and frequent medical care. - 40: Disabled; requires special care and assistance. - 30: Severely disabled; hospitalization is indicated, although death is not imminent. - 20: Very sick; hospitalization necessary; active supportive treatment is needed. - 10: Moribund; fatal processes are progressing rapidly. - 0: Dead.