The quality of life after head injury is highly dependent on the adequacy of cognitive recovery.

The intellectual sequelas of head injury impede social and occupational reintergration more than physical disabilities do.

The present study assessed the relationship between the severity of head injury, ADL (Activities of Daily Living) and cognitive function in head injured patient.

The results were as follows;

1) Final ambulatory status was more dependent in the severe head injury group (p<0.05).

2) Intellectual function, especially recent memory was significantly lower in the severe head injury gorup (p<0.05)

3) Glasgow Outcome Scale(GOS) was more lower and ADL was more dependent in the severe head injury group (P<0.05).

4) Final ambulatory status and ADL were more dependent in the group of lower Cognitive Capacity Screening Examination (CCSE) score (P<0.01).