Results: Polymorphism in XRCC1 rs25487 was significantly associated with reduced ischemic stroke (IS) risk (dominant model: OR = 0.53, 95% CI = 0.36–0.79, p = 0.002), a milder initial stroke (dominant model: OR = 0.57, 95% CI = 0.33–0.98, p = 0.043), and also a better short-term recovery (dominant model: OR = 0.57, 95% CI = 0.35–0.92, p = 0.022). The gene discussed is XRCC1; the disease is Stroke.