Biostatistics

Purushottam W. (Prakash) Laud, PhD

Professor Division of Biostatistics Institute for Health & Society Education: PhD, University of Missouri, 1977   Phone: 414-955-8781 Fax: 414-955-6513 laud@mcw.edu Curriculum Vitae

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.

Research Experience:

• Bayesian Statistical Methodology

Recent Publications:

• Kong, A.L., Yen, T.W., Pezzin, L.E., Miao, H., Sparapani, R.A., Laud, P.W., & Nattinger, A.B. (2011). Socioeconomic and racial differences in treatment for breast cancer at a low-volume hospital. Annals of Surgical Oncology, 18(11), 3220-3227. doi:10.1245/s10434-011-2001-z

• Ma, X., Laud, P.W., Pintar, F., Kim, J.E., Shih, A., Shen, W., Heymsfield, S.B., Allison, D.B., Zhu, S. (2011). Obesity and non-fatal motor vehicle crash injuries: Sex difference effects. International Journal of Obesity (2005), 35(9), 1216-1224. doi:10.1038/ijo.2010.270; 10.1038/ijo.2010.270

• Marbella, A.M., Laud, P.W., Brasel, K.J., & Layde, P.M. (2011). Patient risk factors for medical injury: A case-control study. BMJ Quality & Safety, 20(2), 187-193. doi:10.1136/bmjqs.2009.032664

• Neuner, J.M., Yen, T.W., Sparapani, R.A., Laud, P.W., & Nattinger, A.B. (2011). Fracture risk and adjuvant hormonal therapy among a population-based cohort of older female breast cancer patients. Osteoporosis International  A Journal Established as Result of Cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 22(11), 2847-2855. doi:10.1007/s00198-010-1493-x

• Schapira, M.M., Neuner, J., Fletcher, K.E., Gilligan, M.A., Hayes, E., & Laud, P. (2011). The relationship of health numeracy to cancer screening. Journal of Cancer Education: The Official Journal of the American Association for Cancer Education, 26(1), 103-110. doi:10.1007/s13187-010-0133-7

• Sivaganesan, S., Laud, P.W., & Müller, P. (2011). A Bayesian subgroup analysis with a zero-enriched Polya Urn scheme. Statistics in Medicine, 30(4), 312-323. doi:10.1002/sim.4108

• Wang, M.C., Laud, P.W., Macias, M., & Nattinger, A.B. (2011). Strengths and limitations of international classification of disease ninth revision clinical modification codes in defining cervical spine surgery. Spine, 36(1), E38-44. doi:10.1097/BRS.0b013e3181d273f6

• Wang, M.C., Laud, P.W., Macias, M., & Nattinger, A.B. (2011). 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. doi:10.1097/BRS.0b013e3181f7a943

• Yen, T.W., Czypinski, L. K., Sparapani, R.A., Guo, C., Laud, P.W., Pezzin, L. E., & Nattinger, A. B. (2011). Socioeconomic factors associated with adjuvant hormone therapy use in older breast cancer survivors. Cancer, 117(2), 398-405. doi:10.1002/cncr.25412; 10.1002/cncr.25412

• Zhang, J., Yoganandan, N., Pintar, F. A., Guan, Y., Shender, B., Paskoff, G., & Laud, P.W. (2011). Effects of tissue preservation temperature on high strain-rate material properties of brain. Journal of Biomechanics, 44(3), 391-396. doi:10.1016/j.jbiomech.2010.10.024

Recent Presentations/Abstracts:

• Fletcher, K., Singh, S., Ratkalkar, V., Schapira, M., Whittle, J., Visotcky, A., Laud, P.W., & Goodman, S. How much discontinuity does a hospitalized patient experience?  SGIM 34th Annual Meeting, Phoenix, Arizona, May 2011.
   
• Laud, P.W., 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, P.W., & McCulloch, R.E.  Bayesian nonparametric methods for instrumental variables regression. The 8th Workshop on Bayesian Nonparametrics, Vercruz, Mexico, June 26-30, 2011.
   
• Laud, P.W.  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, P.W., 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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