SERPINE1 and transient ischemic attack: In contrast, the PAI‐1 level was higher in ischemic conditions (IS: SMD = 1.84 [95% CI, −0.40 to 4.08]; p = 0.107; TIA: SMD = 0.51 [95% CI, 0.22 to 0.81]; p < 0.01) and lower in HS patients (SMD = −1.20 [95% CI, −3.30 to 0.89]; p = 0.261).