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首页> 外文期刊>Diabetes research and clinical practice >Accuracy of ankle-brachial index obtained by automated blood pressure measuring devices in patients with diabetes mellitus.
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Accuracy of ankle-brachial index obtained by automated blood pressure measuring devices in patients with diabetes mellitus.

机译：通过自动血压测量设备获得的糖尿病患者踝臂指数的准确性。

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BACKGROUND: Upper arm automated blood pressure devices are widely available and could be used to estimate the ankle-brachial index. METHODS: We conducted a trial to determine the equivalence of ankle-brachial index estimated by an upper arm blood pressure measuring device as index method compared to the handheld Doppler method as the reference standard. A total of 110 patients with diabetes mellitus were sequentially examined by two methods. RESULTS: The prevalence of peripheral arterial disease was 32%. The index method obtained valid measurements in 104 (95%) patients. Ankle-brachial index was lower with the index method compared to the reference standard (mean difference: -0.05; 95% confidence interval [CI]: -0.50 to 0.39). This confidence interval was above the boundaries clinically established as equivalence margins in our study. The kappa agreement between two methods was 0.45. The performance of the index method was: sensitivity: 67%; specificity: 87%; positive likelihood ratio: 5.25; negative likelihood ratio: 0.18; positive predictive value: 71%; negative predictive value: 85%; and the area under the receiving operating characteristic curve: 0.87 (95% CI: 0.78-0.93). CONCLUSION: Upper arm automated blood pressure measuring devices cannot replace the handheld Doppler method to estimate the ankle-brachial index in patients with diabetes mellitus.
机译：背景：上臂自动血压装置已广泛使用，可用于估计踝臂指数。方法：我们进行了一项试验，以确定上臂血压测量装置估算的踝肱指数指标是否等效于指标方法，而手持多普勒方法作为参考标准。两种方法相继检查了110例糖尿病患者。结果：周围动脉疾病的患病率为32％。指数法在104位（95％）患者中获得了有效的测量结果。与参考标准相比，采用指数法测得的踝肱指数要低（平均差：-0.05; 95％置信区间[CI]：-0.50至0.39）。该置信区间超出了我们在研究中临床确定为等效裕度的界限。两种方法之间的kappa一致性为0.45。指标法的性能为：灵敏度：67％;特异性：87％;正似然比：5.25;负似然比：0.18;阳性预测值：71％;阴性预测值：85％;接收工作特性曲线下的面积为：0.87（95％CI：0.78-0.93）。结论：上臂自动血压测量装置不能代替手持式多普勒方法来估计糖尿病患者的踝臂指数。

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