Comparing and combining data across multiple sources via integration of paired-sample data to correct for measurement error.
Comparing and combining data across multiple sources via integration of paired-sample data to correct for measurement error.
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DOI:
10.1002/sim.5446
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发表时间:
2012-12-10
影响因子:
2
通讯作者:
Self, Steve
中科院分区:
文献类型:
--
作者:
Huang, Yunda;Huang, Ying;Moodie, Zoe;Li, Sue;Self, Steve
In biomedical research such as the development of vaccines for infectious diseases or cancer, measures from the same assay are often collected from multiple sources or laboratories. Measurement error that may vary between laboratories needs to be adjusted for when combining samples across laboratories. We incorporate such adjustment in comparing and combining independent samples from different labs via integration of external data, collected on paired samples from the same two laboratories. We propose: 1) normalization of individual level data from two laboratories to the same scale via the expectation of true measurements conditioning on the observed; 2) comparison of mean assay values between two independent samples in the Main study accounting for inter-source measurement error; and 3) sample size calculations of the paired-sample study so that hypothesis testing error rates are appropriately controlled in the Main study comparison. Because the goal is not to estimate the true underlying measurements but to combine data on the same scale, our proposed methods do not require that the true values for the errorprone measurements are known in the external data. Simulation results under a variety of scenarios demonstrate satisfactory finite sample performance of our proposed methods when measurement errors vary. We illustrate our methods using real ELISpot assay data generated by two HIV vaccine laboratories.
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DOI:
10.1007/s00262-009-0814-4
发表时间:
2010-04
期刊:
Cancer immunology, immunotherapy : CII
影响因子:
--
作者:
Mander A;Gouttefangeas C;Ottensmeier C;Welters MJ;Low L;van der Burg SH;Britten CM
通讯作者:
Britten CM
影响因子:
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通讯作者:
Robertson, Michael N.
DOI:
10.1198/016214504000001871
发表时间:
2005-09-01
影响因子:
3.7
作者:
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通讯作者:
Buonaccorsi, JR
影响因子:
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通讯作者:
Sarzotti-Kelsoe, Marcella
影响因子:
5.8
作者:
Britten, C. M.;Gouttefangeas, C.;Welters, M. J. P.;Pawelec, G.;Koch, S.;Ottensmeier, C.;Mander, A.;Walter, S.;Paschen, A.;Mueller-Berghaus, J.;Haas, I.;Mackensen, A.;Kollgaard, T.;thor Straten, P.;Schmitt, M.;Giannopoulos, K.;Maier, R.;Veelken, H.;Bertinetti, C.;Konur, A.;Huber, C.;Stevanovic, S.;Woelfel, T.;van der Burg, S. H.
通讯作者:
van der Burg, S. H.