Objectives:To analysis factors related to the occurrence of pregnancyinduced hypertension(PIH)in Qinhai plateau areas,and to discuss the precautionary measure to reduce the prevalence of PIH.

• 目的:分析青海高原地区妊娠高血压综合征(妊高征)发病的相关因素,探讨降低妊高征发病率的方法及防治措施。