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DATA-ADAPTIVE EFFICIENT ESTIMATION STRATEGIES FOR BIOMARKER STUDIES EMBEDDED IN RANDOMIZED TRIALS 期刊论文
ANNALS OF APPLIED STATISTICS, 2022, 卷号: 16, 期号: 4, 页码: 2250-2265
Authors:  Zhang, Weiz;  Zhang, Zhi wei;  Troendle, James F.;  Liu, Aiyi
Favorite  |  View/Download：19/0  |  Submit date：2023/02/07
Augmentation  precision medicine  semiparametric theory  super learner  two-phase sampling  
Nested Group Testing Procedure 期刊论文
COMMUNICATIONS IN MATHEMATICS AND STATISTICS, 2022, 页码: 31
Authors:  Xiong, Wenjun;  Ding, Juan;  Zhang, Wei;  Liu, Aiyi;  Li, Qizhai
Favorite  |  View/Download：24/0  |  Submit date：2023/02/07
Group testing  Negative predictive value  Positive predictive value  Retest  
Group testing can improve the cost-efficiency of prospective-retrospective biomarker studies 期刊论文
BMC MEDICAL RESEARCH METHODOLOGY, 2021, 卷号: 21, 期号: 1, 页码: 10
Authors:  Zhang, Wei;  Zhang, Zhiwei;  Krushkal, Julia;  Liu, Aiyi
Favorite  |  View/Download：103/0  |  Submit date：2021/04/26
Biomarker study design  Cost-efficiency  Group testing  Pooling  Two-phase sampling  
Error-corrected estimation of a diagnostic accuracy index of a biomarker against a continuous gold standard 期刊论文
STATISTICS IN MEDICINE, 2020, 页码: 25
Authors:  Wu, Mixia;  Zhang, Xiaoyu;  Zhang, Wei;  Zhang, Xu;  Liu, Aiyi
Favorite  |  View/Download：91/0  |  Submit date：2021/01/14
adaptive estimation  additive errors  asymptotic normality  biomarkers  diagnostic accuracy  measurement errors  reliability coefficient  
Best (but oft-forgotten) practices: sample size and power calculation for a dietary intervention trial with episodically consumed foods 期刊论文
AMERICAN JOURNAL OF CLINICAL NUTRITION, 2020, 卷号: 112, 期号: 4, 页码: 920-925
Authors:  Zhang, Wei;  Liu, Aiyi;  Zhang, Zhiwei;  Nansel, Tonja;  Halabi, Susan
Favorite  |  View/Download：86/0  |  Submit date：2021/01/14
dietary intervention trials  episodic consumption  power  sample size  type I error  
Nonparametric estimation of distributions and diagnostic accuracy based on group-tested results with differential misclassification 期刊论文
BIOMETRICS, 2020, 页码: 10
Authors:  Zhang, Wei;  Liu, Aiyi;  Li, Qizhai;  Albert, Paul S.
Favorite  |  View/Download：100/0  |  Submit date：2020/10/12
coverage probability  diagnostic accuracy  differential misclassification  group testing  integrated absolute bias  integrated mean squared error  rare disease  ROC curves  
Order-restricted inference for clustered ROC data with application to fingerprint matching accuracy 期刊论文
BIOMETRICS, 2019, 页码: 11
Authors:  Zhang, Wei;  Tang, Larry L.;  Li, Qizhai;  Liu, Aiyi;  Lee, Mei-Ling Ting
Favorite  |  View/Download：148/0  |  Submit date：2020/05/24
area under the ROC curve  clustered data  fingerprint identification  ROC curve  stochastic ordering  
Incorporating retesting outcomes for estimation of disease prevalence 期刊论文
STATISTICS IN MEDICINE, 2019, 页码: 11
Authors:  Zhang, Wei;  Liu, Aiyi;  Li, Qizhai;  Albert, Paul S.
Favorite  |  View/Download：120/0  |  Submit date：2020/05/24
differential misclassification  efficiency  human immunodeficiency virus  group testing  Lagrange's identity  prevalence  retesting  
A cluster-adjusted rank-based test for a clinical trial concerning multiple endpoints with application to dietary intervention assessment 期刊论文
BIOMETRICS, 2019, 卷号: 75, 期号: 3, 页码: 821-830
Authors:  Zhang, Wei;  Liu, Aiyi;  Tang, Larry L.;  Li, Qizhai
Favorite  |  View/Download：136/0  |  Submit date：2020/01/10
generalized Behrens-Fisher hypothesis  multivariate distributions  nonparametrics  rank statistics  type I errors  power of test  
GATE: an efficient procedure in study of pleiotropic genetic associations 期刊论文
BMC GENOMICS, 2017, 卷号: 18, 页码: 15
Authors:  Zhang, Wei;  Yang, Liu;  Tang, Larry L.;  Liu, Aiyi;  Mills, James L.;  Sun, Yuanchang;  Li, Qizhai
Favorite  |  View/Download：94/0  |  Submit date：2018/07/30
Pleiotropic genetic associations  Principal component analysis  Power  Biomedical study