Purushottam W. (Prakash) Laud, PhD
Division of Biostatistics
Institute for Health & Society
Education: PhD, University of Missouri, 1977
Prakash Laud is a Professor in the Division of Biostatistics at MCW. He joined the Division of Biostatistics in the spring of 1994. He was previously Associate Professor of Mathematics in the Division of Statistics at Northern Illinois University. Professor Laud has several collaborative relationships with researchers at the College, particularly with those in the College's Injury Research Center and the Center for Patient Care and Outcomes Research. Current collaborative projects include those in the areas of falls injury prevention, relationship of obesity and motor vehicle crash fatalities, breast cancer screening and surveillance, osteoporosis screening and treatment, and many others. His methodological research focuses on Bayesian techniques for parametric as well as nonparametric inference for generalized linear and mixed effects models, models for time to event data and genetic association studies in the presence of population structure.
Bayesian Statistical Methodology
Kong AL, Yen TW, Pezzin LE, Miao H, Sparapani RA, Laud PW, Nattinger AB. Socioeconomic and racial differences in treatment for breast cancer at a low-volume hospital. Annals of Surgical Oncology. 2011 Oct;18(11):3220-7. Epub 2011 Aug 23. PMC3201787
Ma X, Laud PW, Pintar F, Kim JE, Shih A, Shen W, Heymsfield SB, Allison DB, Zhu S. Obesity and non-fatal motor vehicle crash injuries: Sex difference effects. International Journal of Obesity. 2011 Sep;35(9):1216-24. Epub 2011 Jan 11. PMC3135704
Marbella AM, Laud PW, Brasel KJ, Layde PM. Patient risk factors for medical injury: A case-control study. BMJ Quality & Safety. 2011 Feb;20(2):187-93. Epub 2011 Jan 5.
Neuner JM, Yen TW, Sparapani RA, Laud PW, Nattinger AB. Fracture risk and adjuvant hormonal therapy among a population-based cohort of older female breast cancer patients. Osteoporosis International. 2011 Nov;22(11):2847-55. Epub 2010 Dec 18. PMC3166362
Schapira MM, Neuner J, Fletcher KE, Gilligan MA, Hayes E, Laud P. The relationship of health numeracy to cancer screening. Journal of Cancer Education: The Official Journal of the American Association for Cancer Education. 2011 Mar;26(1):103-10.
Sivaganesan S, Laud PW, Müller P. A Bayesian subgroup analysis with a zero-enriched Polya Urn scheme. Statistics in Medicine. 2011 Feb 20;30(4):312-23. Epub 2010 Nov 5.
Wang MC, Laud PW, Macias M, Nattinger AB. Strengths and limitations of international classification of disease ninth revision clinical modification codes in defining cervical spine surgery. Spine. 2011 Jan 1;36(1):E38-44.
Wang MC, Laud PW, Macias M, Nattinger AB. Utility of a combined current procedural terminology and international classification of diseases, ninth revision, clinical modification code algorithm in classifying cervical spine surgery for degenerative changes. Spine, 36(22), 1843-1848.
Yen TW, Czypinski LK, Sparapani RA, Guo C, Laud PW, Pezzin LE, Nattinger AB. Socioeconomic factors associated with adjuvant hormone therapy use in older breast cancer survivors. Cancer. 2011 Jan 15;117(2):398-405. Epub 2010 Sep 7. PMC3010527
Zhang J, Yoganandan N, Pintar FA, Guan Y, Shender B, Paskoff G, Laud PW. Effects of tissue preservation temperature on high strain-rate material properties of brain. Journal of Biomechanics. 2011 Feb 3;44(3):391-6. Epub 2010 Nov 5.
Laud PW, Sparapani RA, Pruszynski JE, McCulloch RE. Bayesian models for instrumental variables regression. Fifth Annual Bayesian Biostatistics Conference, Houston, TX, January 24, 2012.
Laud PW, Sparapani RA, Pruszynski JE, McCulloch RE. Model-based comparative effectiveness estimation for observational time-to-event data using instrumental variables. 2012 Joint Statistical Meetings, San Diego, CA, August 1, 2012.
Pruszynski JE, Laud PW, Sparapani RA, McCulloch RE. A performance comparison of methods for instrumental variables regression when treatment is binary. 2012 Joint Statistical Meetings, San Diego, CA, August 1, 2012.
Sparapani RA, Laud PW, Pruszynski JE, McCulloch RE. A Bayesian approach to the instrumental variable problem with a binary outcome and a binary treatment. 2012 Joint Statistical Meetings, San Diego, CA, August 2, 2012.
Fletcher K, Singh S, Ratkalkar V, Schapira M, Whittle J, Visotcky A, Laud PW, Goodman S. How much discontinuity does a hospitalized patient experience? SGIM 34th Annual Meeting, Phoenix, Arizona, May 2011.
Laud PW, Sivaganesan S, Mueller P. A model for subgroup analysis. Invited talk at Hierarchical Models and Markov Chain Monte Carlo: A Conference in Honor of Adrian F. M. Smith. Hersonissou, Crete, Greece, June 2-5, 2011.
Laud PW, McCulloch RE. Bayesian nonparametric methods for instrumental variables regression. The 8th Workshop on Bayesian Nonparametrics, Veracruz, Mexico, June 26-30, 2011.
Laud PW. Bayesian nonparametric models for instrumental variables regression. Talk at the invited Research Program following the 8th Workshop on Bayesian Nonparametrics, Veracruz, Mexico, July 1-9, 2011.
Ratkalkar V, Wesson J, Visotcky A, Laud PW, Kallio C, Framberg S, Kolbach A, Fletcher K. Elevated creatinine an independent predictor of adverse events in the hospitalized patients. 2011 Nephrology Fellows Research Day, October 19, 2011.
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