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目的探讨老年人脉压(PP)和脉压指数(PPI)变化特点与心脑血管事件的关系。方法对唐山市3 850名老年人集中体检,PP水平分为四个层次,≤60 mm Hg,60~80 mm Hg,80~100 mm Hg和>100 mm Hg。PPI水平分为四组,≤0.400,0.401~0.500,0.501~0.600和>0.600,分析各组血压指标特点及与心脑血管病事件的关系。结果随着收缩压的增加,PP、PPI相应增加(P<0.001)。随着PPI水平增加,舒张压呈下降趋势(P<0.01)。脑卒中和冠心病患病率的增加与PP、PPI水平的提高有关(P<0.05)。结论 PP和PPI反映了老年人的血压变化特点,并与心脑血管事件有关。
Objective To investigate the relationship between changes of pulse pressure index (PPI) and cardiovascular and cerebrovascular events in the elderly. Methods The physical examination of 3 850 elderly people in Tangshan City was conducted. The PP levels were divided into four levels, ≤ 60 mm Hg, 60-80 mm Hg, 80-100 mm Hg and> 100 mm Hg. The levels of PPI were divided into four groups, ≤0.400,0.401 ~ 0.500,0.501 ~ 0.600 and> 0.600, and the relationship between the characteristics of blood pressure and the events of cardiovascular and cerebrovascular diseases were analyzed. Results As the systolic blood pressure increased, PP and PPI increased accordingly (P <0.001). With the increase of PPI level, diastolic pressure showed a decreasing trend (P <0.01). The prevalence of stroke and coronary heart disease increased with the increase of PP and PPI (P <0.05). Conclusion PP and PPI reflect the characteristics of blood pressure in the elderly and are related to cardiovascular and cerebrovascular events.