One -thousand stroke patientsWere collected from 7 hospitals in Beijing,and 552Wi th first attack including 191With hemorrhagic stroke and 361With ischemic stro keWere analysed.

• 由北京市七家医院共同完成。抽取观察样本中首次发病的552例卒中进行分析，其中缺血性361例，出血性191例。