Relationship between admission blood pressure and in-hospital disablity and death among acute stroke inpatients

Objective To examine the association between admission blood pressure (BP) and disability and death among acute stroke inpatients.Methods A total of 3938 acute stroke inpatients from six hospitals were included in the study.Baseline data including BP measurement and clinical outcomes during hospitalization were collected from January,2003 to December,2005.The analysis was conducted with χ² test.Results The disability rate was higher for those with acute ischemic stroke (41.3%) compared with acute hemorrhagic stroke (34.4%).The case-fatality rate was higher in acute hemorrhagic stroke (5.9%) than that of in acute ischemic stroke (1.8%).There were no significant difference in disability rate and case-fatality rate among ischemic stroke inpatients with different BP levels (P>0.05).However,disability rate was increased with BP level and there was a significant difference in case-fatality rate among hemorrhagic stroke inpatients with different BP levels (P<0.05).Case-fatality rate was the highest in patients with SBP≥180mmHg and DBP≥110mmHg.Conclusion Admission BP was significantly and positively associated with disability and death among acute hemorrhagic stroke inpatients.