目的探讨收缩压与缺血性心血管病(ICVD)10年发病危险度对无合并糖尿病和慢性肾脏病老年高血压人群全因死亡的影响。方法采取前瞻性队列研究方法,以首次参加2006-2007、2008-2009年开滦集团健康体检的6372例无合并糖尿病和慢性肾脏病老...目的探讨收缩压与缺血性心血管病(ICVD)10年发病危险度对无合并糖尿病和慢性肾脏病老年高血压人群全因死亡的影响。方法采取前瞻性队列研究方法,以首次参加2006-2007、2008-2009年开滦集团健康体检的6372例无合并糖尿病和慢性肾脏病老年高血压人群为观察对象。进行统一问卷调查、血液生化检查,以全因死亡为终点事件。依据观察对象收缩压值分为4组:收缩压<140 mm Hg(Q1组,n=703)、收缩压140~<150 mm Hg(Q2组,n=1931)、收缩压150~<160 mm Hg(Q3组,n=1472)和收缩压≥160 mm Hg(Q4组,n=2266)。用寿命表法计算各组累积全因死亡率,并采用Cox比例风险模型分析收缩压对全因死亡的影响。根据国人10年内ICVD发病危险简易评分方法,评估观察对象10年ICVD发病危险度,采用Cox比例风险模型探讨10年ICVD发病危险度对全因死亡的影响。结果随访(7.2±1.5)年,4组全因死亡例数和累积全因死亡率分别为128(18.2%)、323(16.7%)、264(17.9%)和458(20.2%)(χ~2=9.8,P=0.02)。以Q2组为对照,Cox比例风险模型分析显示,Q4组全因死亡风险比为1.23(95%CI 1.06~1.44,P<0.05);以Q1组为对照,Q2组10年内ICVD发病为很低危+低危、高危+很高危的全因死亡风险比分别为0.64(0.50~0.83)、1.48(1.05~2.10),P<0.05。校正混杂因素后,未服降压药者(n=3939)以及排除随访时间不足1年的观察对象24例后(n=6348),仅Q4组全因死亡风险增加。结论收缩压≥160 mm Hg无合并糖尿病和慢性肾脏病的老年高血压人群全因死亡风险增加23%。收缩压140~<150 mm Hg组10年ICVD发病低危及以下者全因死亡风险减少36%,高危及以上者全因死亡风险增加48%。展开更多
To the Editor I read the article of Zhang, et al. with great interest. They investigated the association of homocysteine with arterial stiffness in Chinese community-based elderly persons. The carotid-femoral pulse wa...To the Editor I read the article of Zhang, et al. with great interest. They investigated the association of homocysteine with arterial stiffness in Chinese community-based elderly persons. The carotid-femoral pulse wave velocity (PWV) was significantly higher in the high homocyteine group than in the normal one, however, there was no differences in carotid-radial PWV between the high homocyteine group and the normal one. Homocysteine levels were strongly associated with the carotidfemoral PWV even after adjustment for classical risk factors of cardiovascular disease. I congratulate the authors for this important study. However, I want to make minor criticism for this study from the methodological aspect.展开更多
文摘目的探讨收缩压与缺血性心血管病(ICVD)10年发病危险度对无合并糖尿病和慢性肾脏病老年高血压人群全因死亡的影响。方法采取前瞻性队列研究方法,以首次参加2006-2007、2008-2009年开滦集团健康体检的6372例无合并糖尿病和慢性肾脏病老年高血压人群为观察对象。进行统一问卷调查、血液生化检查,以全因死亡为终点事件。依据观察对象收缩压值分为4组:收缩压<140 mm Hg(Q1组,n=703)、收缩压140~<150 mm Hg(Q2组,n=1931)、收缩压150~<160 mm Hg(Q3组,n=1472)和收缩压≥160 mm Hg(Q4组,n=2266)。用寿命表法计算各组累积全因死亡率,并采用Cox比例风险模型分析收缩压对全因死亡的影响。根据国人10年内ICVD发病危险简易评分方法,评估观察对象10年ICVD发病危险度,采用Cox比例风险模型探讨10年ICVD发病危险度对全因死亡的影响。结果随访(7.2±1.5)年,4组全因死亡例数和累积全因死亡率分别为128(18.2%)、323(16.7%)、264(17.9%)和458(20.2%)(χ~2=9.8,P=0.02)。以Q2组为对照,Cox比例风险模型分析显示,Q4组全因死亡风险比为1.23(95%CI 1.06~1.44,P<0.05);以Q1组为对照,Q2组10年内ICVD发病为很低危+低危、高危+很高危的全因死亡风险比分别为0.64(0.50~0.83)、1.48(1.05~2.10),P<0.05。校正混杂因素后,未服降压药者(n=3939)以及排除随访时间不足1年的观察对象24例后(n=6348),仅Q4组全因死亡风险增加。结论收缩压≥160 mm Hg无合并糖尿病和慢性肾脏病的老年高血压人群全因死亡风险增加23%。收缩压140~<150 mm Hg组10年ICVD发病低危及以下者全因死亡风险减少36%,高危及以上者全因死亡风险增加48%。
文摘To the Editor I read the article of Zhang, et al. with great interest. They investigated the association of homocysteine with arterial stiffness in Chinese community-based elderly persons. The carotid-femoral pulse wave velocity (PWV) was significantly higher in the high homocyteine group than in the normal one, however, there was no differences in carotid-radial PWV between the high homocyteine group and the normal one. Homocysteine levels were strongly associated with the carotidfemoral PWV even after adjustment for classical risk factors of cardiovascular disease. I congratulate the authors for this important study. However, I want to make minor criticism for this study from the methodological aspect.