The association baseline NIH Stroke Scale score with ABO blood-subtypes in young patients with acute ischemic stroke
2014
Abstract Objectives The presence of the A and B blood group antigens has been associated with risk of arterial thrombosis. The aim of the current study was to design a new simpler form of National Institutes of Health Stroke Scale (NIHSS) for use on admission, and assess the association of blood groups with NIHSS score in young stroke patients. Methods We conducted this study in 1311 young Chinese adults with acute ischemic cerebral stroke. The outcome measures included a composite favorable outcome (defined as a modified Rankin Scale (mRS) of 0 or 2) and poor outcome (defined as a modified Rankin Scale score of 3 or 6) at discharge; a minor strokes (NIHSS scores 0–5) and severe strokes (NIHSS scores ≥6). Logistic regression analyses were used to determine the association between ABO blood groups and stroke severity. Results Regression analysis confirmed in relative to patients with AB subtype, Oxfordshire community stroke project classification (OCSP) subtype and serum white blood cell (WBC) were the major predictors for stroke severity. Meanwhile, diabetes, serum triglyceride and uric acid levels were determined as independent indicators of stroke severity in A, B and O blood subtype respectively. The optimal cutoff score of the baseline NIHSS was ≤5 for patients with non-O subtype, the optimal cutoff score of the baseline NIHSS was ≤7 for patients with blood O subtype. Conclusions Our analysis provide compelling information regarding the ABO blood groups differences in predictors of stroke severity and the different validity of NIHSS scores in predicting prognosis at discharge between O subtype and non-O subtype.
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