Primary End Point
Compared with baseline, the primary end point (PWT)
improved by 1.22.6 minutes with OMC alone, 5.84.6 minutes with SE, and 3.74.9 minutes with ST. Compared
with OMC alone, SE led to a greater mean improvement in
PWT by 4.6 minutes (95% confidence interval, 2.7– 6.5;
P0.001), whereas ST had a somewhat smaller relative
improvement in PWT of 2.5 minutes (95% confidence
interval, 0.6–4.4; P0.022). A direct comparison of SE and
ST demonstrated a greater improvement in PWT with SE by
a mean of 2.1 minutes (95% confidence interval, 0.0–4.2;
P0.04). Similar results were observed with nonparametric
analyses (Table 3). Analyses were repeated without inclusion
of individuals with a stroke history in the SE group and were
similar to those for the entire cohort.