低踝臂指数与动脉硬化高危男性病死率关系的队列研究

目的研究具有多重动脉硬化危险的男性的踝臂指数（ABI）与全因和心血管疾病（CVD）病死率的关系。方法多中心连续人选内科住院病人中具有多个动脉硬化危险因素的男性病人1941例,年龄36～96岁,进行基线特征调查并平均随访13个月,观察其终点事件的发生率。结果外周动脉疾病（PAD）组的全因病死率（15．4％vs 7．7％）和CVD病死率（5．1％vs 1．8％）均高于正常组,且差异有统计学意义。在重度PAD组、轻度至中度PAD组、临界组和正常对照组中的全因病死率（分别为17．6％,15．2％,10．1％和7．3％）和CVD病死率（分别为14．7％,4．4％,2．9％和1．6％）差异有显著统计学意义（P〈0．001）。经Cox回归分析后,轻至中度PAD组（0．4〈ABI≤0．9）全因死亡的RR为1．585（95％CI：1．126～2．230）。重度PAD组（ABI≤0．4）CVD死亡的RR为4．443（95％CI：1．811～10．902）,轻至中度PAD组CVD死亡的RR为1．859（95％CI：1．091～3．166）。PAD组的全因死亡和CVD死亡生存明显低于正常组。结论ABI是全因死亡和CVD死亡的独立危险因素,ABI越低CVD病死率可能越高。

Relationship between low ankle-brachial index and mortality of men with several atherosclerotic risk factors: a cohort study of 1941 cases

OBJECTIVE: To study the relationship between ankle-brachial index (ABI) and all cause mortality and cardiovascular disease mortality in men with several atherosclerotic risk factors. METHODS: 1941 male patients with no less than two atherosclerotic risk factors, aged 67 (36 approximately 96), from 20 hospitals in Shanghai and Beijing, underwent examination of ABI and were followed up for 13.6 +/- 1.3 months to record the all cause mortality and cardiovascular disease (CVD) mortality. RESULTS: The baseline examination showed that 467 patients were with the ABI 0.9 (7.7% and 1.8%, both P < 0.01). After adjusting other risk factors, the patients with 0.41 < ABI