Table 1.

Time from stroke onset (onset-to-treatment time [OTT]), delay after admission, and time of stroke onset

Variable0–90 Minute OTT stratum, n = 30291–180 Minute OTT stratum, n = 320
rt-PAPlacebort-PAPlacebo
rt-PA = recombinant tissue-type plasminogen activator.
No. of patients157145153167
OTT, min, mean (SD); median86.2 (5.4); 8986.4 (5.4); 88153.1 (22.4); 156149.0 (23.8); 151
Onset time of day (24 hour clock), mean time (SD)14:03 (4:36)13:33 (4:10)13:19 (5:11)13:51 (4:49)
Delay from admission to treatment, min, mean (SD); median53.7 (14.9); 5355.2 (17.8); 5484.7 (26.9); 8481.9 (27.0); 79