Table 2:

Patient statistics^a

Statistics	Age (yr)	DWI (mL)	NIHSS Score	Barthel Indexb	Time to Scan (hr)
Mean	74	5.4	1	86	87
Minimum	48	0	0	50	17
Maximum	92	49	6	100	194
Median	71	0.9	0	100	74
SD	11	12.3	2	20	46

^aTime to scan is the time in hours from symptom onset to MR imaging.

^bBarthel Index of Activities of Daily Living