International survey of apolipoproteins A1 and B measurements (1983-1984).
International survey of apolipoproteins A1 and B measurements (1983-1984).
复制标题
国际载脂蛋白 A1 和 B 测量调查(1983-1984 年)。
作者:
G. Cooper;S. J. Smith;D. Wiebe;M. Kuchmak;W. H. Hannon
We report here results of a worldwide survey of apolipoprotein (apo) A1 and B measurements. A lyophilized pool of human serum was developed for the survey to test its suitability as a candidate Reference Material. Seventy-five laboratories from 18 countries responded to invitations to participate. Using several methods, they evaluated the mass concentration of apo A1 and B in the proposed Reference Material. The bias between laboratories and between analytical methods was then characterized. Fifty-five laboratories reported results before the deadline on measurement of at least one apolipoprotein by one method. Variation in apo A1 and B among collaborators constituted the largest source of error in the study (68% of the total variation for apo A1, 73% for apo B). Variation among method means was not significant for apo A1, but for apo B it constituted 20% of the total variation. Differences due to vials or in replicate measurements within vials were found to constitute 6% or less of the total variability. Within-laboratory, among-vial, and among-replicate CV values were less than 5% for the study. These results suggest that future standardization efforts can be successful.
影响因子:
56.9
作者:
BROWN, MS;KOVANEN, PT;GOLDSTEIN, JL
通讯作者:
GOLDSTEIN, JL
DOI:
10.1001/jama.1984.03340270029025
发表时间:
1984
期刊:
JAMA
影响因子:
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作者:
通讯作者:
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