Table 1.

Original Oxford Handicap Scale and OHS used in the MRC CRASH Trial

Original OHS	Modified OHS used in CRASH
Categories	Categories
No symptoms	No symptoms
Minor symptoms that do not interfere with lifestyle	Minor symptoms
Minor handicap, symptoms that lead to some restriction in lifestyle but do not interfere with the patient's capacity to look after himself	Some restriction in lifestyle but independent
Moderate handicap, symptoms that significantly restrict lifestyle and prevent totally independent existence	Dependent but not requiring constant attention
Moderately severe handicap, symptoms that clearly prevent independent existence though not needing constant attention
Severe handicap, totally dependent patient requiring constant attention night and day	Fully dependent requiring attention day and night
	Death