MPO and Stroke: As shown in Table 3, both plasma H3cit and MPO-DNA levels positively correlated with stroke severity (r = 0.332, P = 0.036 and r = 0.391, P = 0.013, respectively) and stroke outcomes (r = 0.379, P = 0.016 and r = 0.466, P = 0.002, respectively), implying the positive correlation between NET formation and stroke severity.