Nonlinear Calibration Model Choice between the Four and Five-Parameter Logistic Models.

Nonlinear Calibration Model Choice between the Four and Five-Parameter Logistic Models.
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四和五参数逻辑模型之间的非线性校准模型选择。

DOI:
10.1080/10543406.2014.920345
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发表时间:
2015
影响因子:
1.1
通讯作者:
De Rosa S
De Rosa S
中科院分区:
医学4区
文献类型:
--
作者:
Cumberland WN;Fong Y;Yu X;Defawe O;Frahm N;De Rosa S

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四参数Logistic模型(4PL)和五参数Logistic模型(5PL)在非线性校正中得到了广泛的应用。在这篇文章中,我们研究了在5PL和4PL之间的选择,包括估计浓度的准确性和精密度,以及检测二元疾病结果与估计浓度之间的关联的能力。我们的结果表明,当真实曲线围绕拐点对称时,在流行的实验设计下,使用5PL的效率损失可以忽略不计。当真实曲线不对称时,由于偏差方差权衡,4PL有时可能会提供更好的性能。我们提供了一个在5PL和4PL之间选择的实用指南,并用来自HIV疫苗试验网络实验室的真实数据集说明了它的应用。
Both the four-parameter logistic (4PL) and the five-parameter logistic (5PL) models are widely used in nonlinear calibration. In this paper, we study the choice between 5PL and 4PL both by the accuracy and precision of the estimated concentrations and by the power to detect an association between a binary disease outcome and the estimated concentrations. Our results show that when the true curve is symmetric around its inflection point, the efficiency loss from using 5PL is negligible under the prevalent experimental design. When the true curve is asymmetric, 4PL may sometimes offer better performance due to bias-variance trade-off. We provide a practical guideline for choosing between 5PL and 4PL and illustrate its application with a real dataset from the HIV Vaccine Trials Network laboratory.
DOI: 10.1111/j.1541-0420.2012.01762.x
发表时间: 2012-12-01
期刊: BIOMETRICS
影响因子: 1.9
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