Objective: Investigate the change of coagulation index for patients with hypertensive disorder complicating pregnancy of the effect of coagulation on the pregnant complication and perinatal outcomes.

• 目的：分析妊娠期高血压疾病患者凝血相关指标的变化，以及凝血功能改变对孕妇并发症及围产结局的影响。