In analyses adjusted for age, sex, education, history of smoking, drinking, hypertension, diabetes, stroke and hyperlipidemia, stroke causes, NIHSS score, BI, BMI, and infarct location (Model 2), the patients with high serum SOD had a low risk of CI-E (OR 0.62, 95% CI: 0.42–0.91, P = 0.013) and CI-L (OR 0.34, 95% CI: 0.17–0.69 per SD, P = 0.003). Here, SOD1 is linked to hypertensive disorder.