Spontaneous intracerebral hemorrhage in a plateau area: a study based on the Tibetan population
EANS Academy. LIU X. 09/25/19; 275520; EP01127

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Objective: To reveal the characteristics of spontaneous intracerebral hemorrhage (sICH) in a plateau area based on the Tibetan population.
Methods: Data of Tibetan and Han patients (control group) with sICH treated at our center from January 2013 to April 2017 were retrospectively reviewed.
Results: A total of 122 Tibetan and 927 Han patients were included. Compared with Han patients, Tibetan patients were older (54.7±11.2 vs. 50.9±18.3 years, P=0.027), exhibited higher male-to-female ratios (73.8% vs. 55.0%, P < 0.001),were more overweight (22.1% vs. 13.1%, P=0.007) had more smokers (36.9% vs. 20.5%, P < 0.001), had a higher concentration of hemoglobin (163.7±17.6 vs. 134.8±20.2 g/L, P < 0.001), and included a higher number of patients with hypertension (83.6% vs. 60.5%, P < 0.001), diabetes mellitus (19.2% vs. 9.3%, P =0.002), and prior hemorrhagic stroke (9.0% vs. 2.0%, P < 0.001). Tibetan patients also experienced more brainstem hemorrhage (11.5% vs. 5.1%, P=0.039) in the infratentorial region and had a higher risk of in-hospital complications resulting from hematoma enlargement (20.5% vs. 10.4%, P=0.002) and cerebral infarction (59.0% vs. 9.7%, P < 0.001). During a 6-month follow-up period, they had higher rates of unfavorable outcomes and case mortality (P < 0.05). A multivariable analysis adjusted for confounding factors revealed that the Tibetan race was positively associated with unfavorable clinical outcomes in sICH patients (P < 0.05).
Conclusion: Tibetan sICH patients from the plateau area presented unique characteristics in their baseline measurements, incidence of comorbidities, hematoma location, risk of in-hospital complications, and clinical outcomes compared with Han patients. The Tibetan race was positively associated with unfavorable 6-month outcomes in ICH patients.
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