Professor 

Education

Research Interests


Books
Choudhary, P. K., Nagaraja, C. H. and Ng, H. K. T. (2015) Ordered Data Analysis, Modeling and Health Research Methods  In Honor of H. N. Nagaraja's 60th Birthday, Springer Proceedings in Mathematics & Statistics, Vol. 149, Springer.  
Choudhary, P. K. and Nagaraja, H. N. (2017) Measuring Agreement: Models, Methods, and Applications, Wiley. A companion website supplements the book with R code and datasets. 
Short Courses
Analysis of Continuous and Categorical Method Comparison Data, Joint Statistical Meetings, July 30, 2018, Vancouver, Canada
Statistical and Machine Learning Methods for Classification Using R , MESIO UPCUB XIII Summer School, June 1721, 2019, Barcelona, Spain
Publications
In peerreviewed journals
de Silva, G. S. R. and Choudhary, P. K. (2023) Tolerance Bands for Exponential Family Functional Data (with supplement), Canadian Journal of Statistics, to appear. R Code, Illustration 1, Illustration 2, Dataset 1, Dataset 2
Ruberu, T. L. M., Rajapaksha, R. M. D. S., Heitzeg, M. M., Klaus, R., Boden, J. M., Biswas, S., and Choudhary, P. K. (2023) Validation of a Bayesian Learning Model to Predict the Risk of Cannabis Use Disorder, Addictive Behaviors, 146, 107799, https://www.sciencedirect.com/science/article/abs/pii/S0306460323001946?via%3Dihub
Rajapaksha, R. M. D. S., Filbey, F., Biswas, S., and Choudhary, P. K. (2022) A Bayesian Learning Model to Predict the Risk for Cannabis Use Disorder, Drug and Alcohol Dependence, 236, 109476, https://www.sciencedirect.com/science/article/abs/pii/S0376871622002137
Sajal, I. H., Chowdhury, M., Wang, T., Euhus, D., Choudhary, P. K., and Biswas, S. (2022) CBCRiskBlack: A Personalized Contralateral Breast Cancer Risk Prediction Model for Black Women, Breast Cancer Research and Treatment, 194, 179186, https://pubmed.ncbi.nlm.nih.gov/35562619/
Ruberu, T. L. M., Kenyon, E. A., Hudson, K. A., Filbey, F., Ewing, S. W. F., Biswas, S. and Choudhary, P. K. (2022) Joint Risk Prediction for Hazardous Use of Alcohol, Cannabis, and Tobacco among Adolescents: A Preliminary Study Using Statistical and Machine Learning, Preventive Medicine Reports, 25, 101674, https://www.sciencedirect.com/science/article/pii/S221133552100365X
Rajapaksha, R. M. D. S., Hammonds, R., Filbey, F., Choudhary, P. K. and Biswas, S. (2020) A Preliminary Risk Prediction Model for Cannabis Use Disorder, Preventive Medicine Reports, 20, 101228, https://doi.org/10.1016/j.pmedr.2020.101228
de Silva, G. S. R., Rathnayake, L. N. and Choudhary, P. K. (2020) Modeling and analysis of functional method comparison data (with supplement), Communications in Statistics  Simulation and Computation, https://doi.org/10.1080/03610918.2020.1830292. R Code, Illustration 1, Illustration 2, y1.txt, y2.txt
Rankothgedara, L. N. K. and Choudhary, P. K. (2020) A segmented measurement error model for modeling and analysis of method comparision data (with supplement), Statistics in Medicine, 39, 34913502. R Code, Illustration, digoxin.txt
Zhang, L., Papachristou, C., Choudhary, P. K. and Biswas, S. (2020) A Bayesian hierarchical framework for pathway analysis in genomewide association studies, Human Heredity, doi: 10.1159/000508664
Li, X., Choudhary, P. K., Biswas, S. and Wang, X. (2018) A Bayesian latent variable approach to aggregation of partial and topranked lists in genomic studies, Statistics in Medicine, 37, 42664278.
Chowdhury, M., Euhus, D., Banu, A., Umbricht, C., Biswas, S. and Choudhary, P. K. (2018) Validation of a Personalized Risk Prediction Model for Contralateral Breast Cancer, Breast Cancer Research and Treatment, 170, 415423.
Chowdhury, M., Euhus, D., O'Donnell, M., Onega, T., Choudhary, P. K. and Biswas, S. (2018) DoseDependent Effect of Mammographic Breast Density on the Risk of Contralateral Breast Cancer, Breast Cancer Research and Treatment, 170, 143148.
Rathnayake, L. N. and Choudhary, P. K. (2017) Semiparametric Modeling and Analysis of Longitudinal Method Comparison Data, Statistics in Medicine, 36, 20032015. R Code, Illustration
Chowdhury, M., Euhus, D., Onega, T., Biswas, S. and Choudhary, P. K. (2017) A model for individualized risk prediction of contralateral breast cancer, Breast Cancer Research and Treatment, 161, 153160. CBCRisk R Package, CBCRisk Web App
Rathnayake, L. N. and Choudhary, P. K. (2016) Tolerance bands for functional data , Biometrics, 72, 503512. R Code and Illustration
Nawarathna, L. S. and Choudhary, P. K. (2015) A heteroscedastic measurement error model for method comparison data with replicate measurements , Statistics in Medicine, 34, 12421258.
Burbano M., Wilson, T. G. Jr., Valderrama, P., Blansett, J., Wadhwani, C. P., Choudhary P. K., Rodriguez, L. C., and Rodrigues, D. C. (2015) Characterization of cement particles found in periimplantitisaffected human biopsy specimens, International Journal of Oral & Maxillofacial Implants, 30, 11681173.
Brulez, K., Choudhary, P. K., Maurer, G., Portugal, S. J., Boulton, R. L., Webber, S. L. and Cassey, P. (2014) Visual scoring of eggshell patterns has poor repeatability, Journal of Ornithology, 155, 701706.
Choudhary, P. K., Sengupta, D. and Cassey, P. (2014) A general skewt mixed model that allows different degrees of freedom for random effects and error distributions, Journal of Statistical Planning and Inference, 147, 235247.
Nawarathna, L. S. and Choudhary, P. K. (2013) Measuring agreement in method comparison studies with heteroscedastic measurements, Statistics in Medicine, 32, 51565171.
Yu, X., Baron, M. and Choudhary, P. K. (2013) Changepoint detection in binomial thinning processes, with applications in epidemiology, Sequential Analysis, 32, 350367.
Assaad, H. and Choudhary, P. K. (2013) Lstatistics for repeated measurements data with application to trimmed means, quantiles and tolerance intervals, Journal of Nonparametric Statistics, 25, 499521.
Shelor, C. P., Kirk, A. B., Dasgupta, P. K., Kroll, M., Campbell, C. A. and Choudhary, P. K. (2012) Breastfed Infants Metabolize Perchlorate, Environmental Science & Technology, 46 , 51515159.
Kalra, IS, Alam, MM, Choudhary, PK, Pace, BS (2011) Kruppellike Factor 4 activates HBG gene expression in primary erythroid cells, British Journal of Haematology, 154, 248259.
Chou, JL, Shenoy, DV, Thomas, N, Choudhary, PK, Laferla, FM, Goodman, SR, Breen, GA (2011) Early dysregulation of the mitochondrial proteome in a mouse model of Alzheimer's disease, Journal of Proteomics, 74, 466479.
Ghatpande, SS, Choudhary, PK, Quinn, CT, Goodman, SR (2010) In vivo pharmacoproteomic analysis of hydroxyurea induced changes in the sickle red blood cell membrane proteome, Journal of Proteomics, 73, 619626.
Igic, B., Hauber, M. E., Galbraith, J. A., Grim, T., Dearborn, D. C., Brennan, P. L. R., Moskat, C., Choudhary, P. K. and Cassey, P. (2010) Comparison of micrometer and scanning electron microscopebased measurements of avian eggshell thickness, Journal of Field Ornithology, 81, 402410.
Choudhary, P. K. (2010) A unified approach for nonparametric evaluation of agreement in method comparison studies . The International Journal of Biostatistics, 6, issue 1, article 19. Available at http://www.bepress.com/ijb/vol6/iss1/19
Choudhary, P. K. and Yin, K. (2010) Bayesian and frequentist methodologies for analyzing method comparison studies with multiple methods . Statistics in Biopharmaceutical Research, 2, 122132.
HryniewiczJankowska, A, Choudhary, PK, Ammann, LP, Quinn, CT, Goodman, SR (2009) Monocyte protein signatures of disease severity in sickle cell anemia, Experimental Biology and Medicine, 234, 210221.
Yin, K., Choudhary, P. K., Varghese, D. and Goodman, S. R. (2008) A Bayesian approach for sample size determination in method comparison studies. Statistics in Medicine, 27, 22732289. R Code
Choudhary, P. K. (2008) A tolerance interval approach for assessment of agreement in method comparison studies with repeated measurements. J. of Statistical Planning and Inference, 138, 11021115.
Ghatpande, S.S., Choudhary, P.K., Quinn, C.T. and Goodman, S.R (2008) Pharmacoproteomic study of Hydroxyureainduced modifications in the sickle red blood cell membrane proteome, Experimental Biology and Medicine, 233, 15101517.
Choudhary, P. K. (2007) Semiparametric regression for assessing agreement using tolerance bands . Computational Statistics and Data Analysis, 51, 62296241.
Choudhary, P. K. (2007) A tolerance interval approach for assessment of agreement with left censored data . J. of Biopharmaceutical Statistics, 17, 583594.
Choudhary, P. K. and Nagaraja, H. N. (2007) Tests for assessment of agreement using probability criteria, J. of Statistical Planning and Inference, 137, 279290. R Code
HryniewiczJankowska, A, Choudhary, PK, Goodman, SR (2007) Variation in the monocyte proteome, Experimental Biology and Medicine, 232, 967976.
Choudhary, P. K. and Ng, H. K. T. (2006) Assessment of agreement under nonstandard conditions using regression models for mean and variance, Biometrics, 62 , 288296.
Chou, J., Choudhary, P. K. and Goodman, S. R. (2006) Protein profiling of sickle cell versus control RBC core membrane skeletons by ICAT technology and tandem mass spectrometry, Cellular & Molecular Biology Letters, 11, 326337.
Svatek, R. S., Shulman, M., Choudhary, P. K., and Benaim, E. (2006) Critical analysis of prostate specific antigen doubling time calculation methodology, Cancer, 106, 10471053.
Choudhary, P. K. and Nagaraja, H. N. (2005) A twostage procedure for selection and assessment of agreement of the best instrument with a gold standard, Sequential Analysis, 24, 237257. R Code
Choudhary, P. K. and Nagaraja, H. N. (2005) Assessment of agreement using intersectionunion principle , Biometrical J. , 47, 674681.
Choudhary, P. K. and Nagaraja, H. N. (2005) Selecting the instrument closest to a gold standard, J. of Statistical Planning and Inference, 129, 229237.
Nagaraja, H. N., Choudhary, P. K. and Matalas, N. (2003) Number of records in a bivariate sample with application to Missouri river flood data, Methodology and Computing in Applied Probability, 4, 377391.
Misra, N., Choudhary, P.K., Dhariyal, I. and Kundu, D. (2002) Smooth estimators for estimating order restricted scale parameters of two gamma distributions, Metrika, 56, 143161.
Choudhary, P. K., Kundu, D. and Misra, N. (2001) Likelihood ratio test for simultaneous testing of mean and variance in normal distribution, J. of Statistical Computation and Simulation, 71, 313333.
In edited volumes
Sengupta, D., Choudhary, P. K. and Cassey, P. (2015) Modeling and Analysis of Method Comparison Data with Skewness and Heavy Tails. In Ordered Data Analysis, Modeling and Health Research Methods, Choudhary, P. K., Nagaraja, C. H. and Ng, H. K. T. (Editors), Springer, New York, 169187.
Choudhary, P. K. (2009) Interrater agreement. In Methods and Applications of Statistics in the Life and Health Sciences, Balakrishnan, N. et al. (Editors), John Wiley, 461480. This article also appears as an entry in the online version of Wiley's Encyclopedia of Statistical Sciences, second edition.
Choudhary, P. K. and Nagaraja, H. N. (2004) Measuring agreement in method comparison studies  A review. In Advances in Ranking and Selection, Multiple Comparisons, and Reliability, Balakrishnan, N., Kannan, N. and Nagaraja, H. N. (Editors), Birkhauser, Boston, 215244.
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10/19/2023