Ischemic strokes occur when blood flow is blocked to the brain, but are easier to treat and less deadly than hemorrhagic strokes, which occurs when a weakened vessel in the brain ruptures and bleeds into the organ. About 87 percent of all strokes are ischemic strokes, according to the American Stroke Association. Next, the researchers looked at how many people developed ischemic stokes and how many developed hemorrhagic strokes. You can even ask yourself,' Knutson said. The risk was even more heightened in patients who are aged 60 and older, and already are more likely to have strokes that result in complications or death.
About 0.4 died of a stroke.
( z0 die :ARG1 ( z1 person :quant ( z2 about :op 0.4 ) ) :ARG1-of ( z3 cause :ARG0 ( z4 stroke :ARG1 z1 ) ) )
(z0 / die-01
    :ARG1 (z1 / person
              :quant (z2 / about
                         :op1 0.4))
    :ARG1-of (z3 / cause-01
                 :ARG0 (z4 / stroke-02
                           :ARG1 z1)))
About 0.4 died of a stroke .
z1 :quant z2
z2 :op1 0
z0 :ARG1 z1
z0 :ARG1-of z3
z3 :ARG0 z4
z4 :ARG1 z1