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目的评价冠状动脉疾病(CAD)发生率对冠状动脉CT血管成像(CTA)预测值的影响。方法基于广义线性混合模型的二项分布和logit关联方法,以传统的冠状动脉造影为参考标准,以文献中报道的CAD发生率对每例病人CT阴性预测值和阳性预测值的影响进行分析。CTA阴性预测值高于90%,同时阳性预测值高于70%的患病率纳入研究
Objective To evaluate the influence of the incidence of coronary artery disease (CAD) on the predictive value of coronary artery angiography (CTA). Methods Based on the binomial distribution and logit correlation method of generalized linear mixed model, the traditional coronary angiography was used as the reference standard, and the influence of CAD incidence in the literature on CT negative predictive value and positive predictive value was analyzed. CTA negative predictive value higher than 90%, while the positive predictive value higher than 70% prevalence into the study