低于120风险急剧上升;高于130风险逐步上升。
文献链接:
Optimal Systolic Blood Pressure Levels for Primary Prevention of Stroke in General Hypertensive adults
--Findings From the CSPPT (China Stroke Primary Prevention Trial)
主要结果见下图。
Comparisons of first stroke by time-averaged on-treatment systolic blood pressure (SBP) categories in different subgroups. HR indicates hazard ratio.