Blood serum analyses in population studies: parallel analyses and degree of agreement in a Norwegian-Russian co-project. The Svalbard Study.

Arctic medical research Pub Date : 1996-04-01
O Nilssen, R Lipton, G Höyer, J Bojko, A Tkatchev, T Brenn
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Abstract

In a survey of more than 300 russian coal workers living on Svalbard, parallel laboratory analyses of gamma-glutamyltransferase, serum total cholesterol, high density lipoprotein, and triglycerides were performed in Tromsö, Norway and in Archangelsk, Russia. Mean values for gamma-glutamyltransferase and serum total cholesterol were significantly higher in Tromsö than in Archangelsk while mean values of triglycerides and high density lipoproteins were significantly lower in Tromsö than in Archangelsk. Linear regression plots revealed both systematical and arbitrary differences between the two laboratories. Because no "true" standards were available, we were unable to assess the accuracy of laboratory results. We conclude that laboratory measurements from Norway and Russia are not directly comparable. Future research programs between the two laboratories should attempt to include calibrated standards of test serum from which to identify sources of variation. Alternatively, the serum tests should always only be analyzed at one site.

人口研究中的血清分析:挪威-俄罗斯合作项目的平行分析和一致程度。斯瓦尔巴群岛研究。
在对生活在斯瓦尔巴群岛的300多名俄罗斯煤矿工人的调查中,在挪威Tromsö和俄罗斯阿尔切尔斯克进行了γ -谷氨酰转移酶、血清总胆固醇、高密度脂蛋白和甘油三酯的平行实验室分析。γ -谷氨酰转移酶和血清总胆固醇的平均值在Tromsö显著高于Archangelsk,而甘油三酯和高密度脂蛋白的平均值在Tromsö显著低于Archangelsk。线性回归图显示了两个实验室之间的系统和任意差异。因为没有“真正的”标准可用,我们无法评估实验室结果的准确性。我们得出结论,来自挪威和俄罗斯的实验室测量不能直接比较。两个实验室之间未来的研究计划应尝试包括测试血清的校准标准,以确定变异的来源。或者,血清试验应始终只在一个部位分析。
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