100 Normal, no complaints, no evidence of disease 90 Able to carry on normal activity, minor signs or symptoms of disease 1 Symptoms, but ambulatory. Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature ( e.g., light housework, office work) . 80 Normal activity with effort, some signs or symptoms of disease 70 Cares for self, unable to carry on normal activity or to do active work 2 In bed < 50% of the time. Ambulatory and capable of all self -care but unable to carry out any work activities. Up and about more than 50% of waking hours . 60 Requires occasional assistance but is able to care for most needs 50 Requires considerable assistance and frequent medical care 3 In bed > 50% of the time. Capable of only limited self -care, confined to bed or chair > 50% of waking hours . 40 Disabled, requires special care and assistance 30 Severely disabled, hospitalization indicated. Death not imminent . 4 100% bedridden. Completely di sabled, cannot carry on any self -care, totally confined to bed or chair . 20 Very sick, hospitalization indicated.