Medical College of Wisconsin
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Purushottam W. Laud PhD

Purushottam W. Laud PhD

Professor

Institution: Medical College of Wisconsin
Department: Institute for Health and Society
Division: Biostatistics
Program: Research

Member of the Cancer Center
Member of the Center For Patient Care and Outcomes Research (PCOR)


Research Experience

  • Bayesian Statistical Methodology
  • Leadership Positions

  • Faculty Biostatistician in the Center for Patient Care and Outcomes Research.
    Biostatistics Graduate Committee Chair.
  • Acting Director, Division of Biostatistics
  • Publications

  • Changes in written sign-out composition across hospitalization. (Miller DM, Schapira MM, Visotcky AM, Laud P, Arora VM, Kordus A, Whittle J, Singh S, Fletcher KE) J Hosp Med 2015 Aug;10(8):534-6 PMID: 26061434 06/11/2015
  • The introduction of generic aromatase inhibitors and treatment adherence among Medicare D enrollees. (Neuner JM, Kamaraju S, Charlson JA, Wozniak EM, Smith EC, Biggers A, Smallwood AJ, Laud PW, Pezzin LE) J Natl Cancer Inst 2015 Aug;107(8): PMID: 25971298 05/15/2015
  • A re-formulation of generalized linear mixed models to fit family data in genetic association studies. (Wang T, He P, Ahn KW, Wang X, Ghosh S, Laud P) Front Genet 2015;6:120 PMID: 25873936 PMCID: PMC4379931 04/16/2015
  • Translating a Fall Prevention Intervention Into Practice: A Randomized Community Trial. (Guse CE, Peterson DJ, Christiansen AL, Mahoney J, Laud P, Layde PM) Am J Public Health 2015 Jul;105(7):1475-81 PMID: 25602891 01/21/2015
  • Does neighborhood environment differentiate intimate partner femicides from other femicides? (Beyer KM, Layde PM, Hamberger LK, Laud PW) Violence Against Women 2015 Jan;21(1):49-64 PMID: 25540251 PMCID: PMC4500151 12/30/2014
  • An algorithm to identify the development of lymphedema after breast cancer treatment. (Yen TW, Laud PW, Sparapani RA, Li J, Nattinger AB) J Cancer Surviv 2015 Jun;9(2):161-71 PMID: 25187004 PMCID: PMC4362809 09/05/2014
  • Predicting postsurgery nasal physiology with computational modeling: current challenges and limitations. (Frank-Ito DO, Kimbell JS, Laud P, Garcia GJ, Rhee JS) Otolaryngol Head Neck Surg 2014 Nov;151(5):751-9 PMID: 25168451 PMCID: PMC4405156 08/30/2014
  • Haemodynamics during dialysis and cognitive performance. (Wolfgram DF, Sunio L, Vogt E, Smith HM, Visotcky A, Laud P, Whittle J) Nephrology (Carlton) 2014 Dec;19(12):771-6 PMID: 25103846 PMCID: PMC4452995 08/12/2014
  • A randomized trial of peer-delivered self-management support for hypertension. (Whittle J, Schapira MM, Fletcher KE, Hayes A, Morzinski J, Laud P, Eastwood D, Ertl K, Patterson L, Mosack KE) Am J Hypertens 2014 Nov;27(11):1416-23 PMID: 24755206 PMCID: PMC4263938 04/24/2014
  • Characterization of biological pathways associated with a 1.37 Mbp genomic region protective of hypertension in Dahl S rats. (Cowley AW Jr, Moreno C, Jacob HJ, Peterson CB, Stingo FC, Ahn KW, Liu P, Vannucci M, Laud PW, Reddy P, Lazar J, Evans L, Yang C, Kurth T, Liang M) Physiol Genomics 2014 Jun 1;46(11):398-410 PMID: 24714719 PMCID: PMC4042181 04/10/2014
  • Surgeon specialization and use of sentinel lymph node biopsy for breast cancer. (Yen TW, Laud PW, Sparapani RA, Nattinger AB) JAMA Surg 2014 Feb;149(2):185-92 PMID: 24369337 PMCID: PMC4005375 12/27/2013
  • Changes in nasal airflow and heat transfer correlate with symptom improvement after surgery for nasal obstruction. (Kimbell JS, Frank DO, Laud P, Garcia GJ, Rhee JS) J Biomech 2013 Oct 18;46(15):2634-43 PMID: 24063885 PMCID: PMC3959863 09/26/2013
  • Characteristics of the residential neighborhood environment differentiate intimate partner femicide in urban versus rural settings. (Beyer KM, Layde PM, Hamberger LK, Laud PW) J Rural Health 2013 Jun;29(3):281-93 PMID: 23802930 PMCID: PMC3695409 06/28/2013
  • Increased proliferative cells in the medullary thick ascending limb of the loop of Henle in the Dahl salt-sensitive rat. (Yang C, Stingo FC, Ahn KW, Liu P, Vannucci M, Laud PW, Skelton M, O'Connor P, Kurth T, Ryan RP, Moreno C, Tsaih SW, Patone G, Hummel O, Jacob HJ, Liang M, Cowley AW Jr) Hypertension 2013 Jan;61(1):208-15 PMID: 23184381 PMCID: PMC3760736 11/28/2012
  • A computational study of injury severity and pattern sustained by overweight drivers in frontal motor vehicle crashes. (Kim JE, Kim IH, Shum PC, Shih AM, Pintar F, Shen W, Ma X, Laud PW, Heymsfield SB, Allison DB, Zhu S) Comput Methods Biomech Biomed Engin 2014;17(9):965-77 PMID: 23113549 PMCID: PMC4494790 11/02/2012
  • Thirty-day readmissions after elective spine surgery for degenerative conditions among US Medicare beneficiaries. (Wang MC, Shivakoti M, Sparapani RA, Guo C, Laud PW, Nattinger AB) Spine J 2012 Oct;12(10):902-11 PMID: 23098615 10/27/2012
  • Socioeconomic and racial differences in treatment for breast cancer at a low-volume hospital. (Kong AL, Yen TW, Pezzin LE, Miao H, Sparapani RA, Laud PW, Nattinger AB) Ann Surg Oncol 2011 Oct;18(11):3220-7 PMID: 21861226 PMCID: PMC3201787 08/24/2011
  • 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. (Wang MC, Laud PW, Macias M, Nattinger AB) Spine (Phila Pa 1976) 2011 Oct 15;36(22):1843-8 PMID: 21245779 01/20/2011
  • A Bayesian subgroup analysis with a zero-enriched Polya Urn scheme. (Sivaganesan S, Laud PW, Müller P) Stat Med 2011 Feb 20;30(4):312-23 PMID: 21225894 01/13/2011
  • Obesity and non-fatal motor vehicle crash injuries: sex difference effects. (Ma X, Laud PW, Pintar F, Kim JE, Shih A, Shen W, Heymsfield SB, Allison DB, Zhu S) Int J Obes (Lond) 2011 Sep;35(9):1216-24 PMID: 21224830 PMCID: PMC3135704 01/13/2011
  • Patient risk factors for medical injury: a case-control study. (Marbella AM, Laud PW, Brasel KJ, Layde PM) BMJ Qual Saf 2011 Feb;20(2):187-93 PMID: 21209151 01/07/2011
  • Fracture risk and adjuvant hormonal therapy among a population-based cohort of older female breast cancer patients. (Neuner JM, Yen TW, Sparapani RA, Laud PW, Nattinger AB) Osteoporos Int 2011 Nov;22(11):2847-55 PMID: 21170643 PMCID: PMC3166362 12/21/2010
  • Effects of tissue preservation temperature on high strain-rate material properties of brain. (Zhang J, Yoganandan N, Pintar FA, Guan Y, Shender B, Paskoff G, Laud P) J Biomech 2011 Feb 3;44(3):391-6 PMID: 21055756 11/09/2010
  • Strengths and limitations of International Classification of Disease Ninth Revision Clinical Modification codes in defining cervical spine surgery. (Wang MC, Laud PW, Macias M, Nattinger AB) Spine (Phila Pa 1976) 2011 Jan 1;36(1):E38-44 PMID: 20975624 10/27/2010
  • Socioeconomic factors associated with adjuvant hormone therapy use in older breast cancer survivors. (Yen TW, Czypinski LK, Sparapani RA, Guo C, Laud PW, Pezzin LE, Nattinger AB) Cancer 2011 Jan 15;117(2):398-405 PMID: 20824718 PMCID: PMC3010527 09/09/2010
  • Heightened attention to medical privacy: challenges for unbiased sample recruitment and a possible solution. (Nattinger AB, Pezzin LE, Sparapani RA, Neuner JM, King TK, Laud PW) Am J Epidemiol 2010 Sep 15;172(6):637-44 PMID: 20660123 PMCID: PMC3025645 07/28/2010
  • The relationship of health numeracy to cancer screening. (Schapira MM, Neuner J, Fletcher KE, Gilligan MA, Hayes E, Laud P) J Cancer Educ 2011 Mar;26(1):103-10 PMID: 20577913 PMCID: PMC4162638 06/26/2010
  • Severe-to-fatal head injuries in motor vehicle impacts. (Yoganandan N, Baisden JL, Maiman DJ, Gennarelli TA, Guan Y, Pintar FA, Laud P, Ridella SA) Accid Anal Prev 2010 Jul;42(4):1370-8 PMID: 20441854 05/06/2010
  • Elderly breast cancer survivors accurately self-report key treatment information. (Yen TW, Sparapani RA, Guo C, Neuner JM, Laud PW, Nattinger AB) J Am Geriatr Soc 2010 Feb;58(2):410-2 PMID: 20370882 PMCID: PMC2972547 04/08/2010
  • BMI and risk of serious upper body injury following motor vehicle crashes: concordance of real-world and computer-simulated observations. (Zhu S, Kim JE, Ma X, Shih A, Laud PW, Pintar F, Shen W, Heymsfield SB, Allison DB) PLoS Med 2010 Mar;7(3):e1000250 PMID: 20361024 PMCID: PMC2846859 04/03/2010
  • Graduated driver licensing policy in the Great Lakes states: current benefits and future potential. (Corden TE, Tonellato DJ, Frisch KB, Laud PW) WMJ 2009 Nov;108(8):393-7 PMID: 20041576 01/01/2010
  • Patient satisfaction with physician-patient communication during telemedicine. (Agha Z, Schapira RM, Laud PW, McNutt G, Roter DL) Telemed J E Health 2009 Nov;15(9):830-9 PMID: 19919189 11/19/2009
  • Apoptosis of CD4+ CD25(high) T cells in type 1 diabetes may be partially mediated by IL-2 deprivation. (Jailwala P, Waukau J, Glisic S, Jana S, Ehlenbach S, Hessner M, Alemzadeh R, Matsuyama S, Laud P, Wang X, Ghosh S) PLoS One 2009;4(8):e6527 PMID: 19654878 PMCID: PMC2716541 08/06/2009
  • A contemporary, population-based study of lymphedema risk factors in older women with breast cancer. (Yen TW, Fan X, Sparapani R, Laud PW, Walker AP, Nattinger AB) Ann Surg Oncol 2009 Apr;16(4):979-88 PMID: 19194754 PMCID: PMC2729500 02/06/2009
  • A framework for health numeracy: how patients use quantitative skills in health care. (Schapira MM, Fletcher KE, Gilligan MA, King TK, Laud PW, Matthews BA, Neuner JM, Hayes E) J Health Commun 2008 Jul-Aug;13(5):501-17 PMID: 18661390 PMCID: PMC4162627 07/29/2008
  • Exploring the surgeon volume outcome relationship among women with breast cancer. (Nattinger AB, Laud PW, Sparapani RA, Zhang X, Neuner JM, Gilligan MA) Arch Intern Med 2007 Oct 8;167(18):1958-63 PMID: 17923595 10/10/2007
  • A randomized study of the effect of 5-year and lifetime hip fracture risk information on physician recommendations for management of low bone density. (Neuner JM, Laud PW, Schapira MM) J Clin Densitom 2007 Oct-Dec;10(4):370-5 PMID: 17888700 PMCID: PMC4098647 09/25/2007
  • Racial and socioeconomic disparities in bone density testing before and after hip fracture. (Neuner JM, Zhang X, Sparapani R, Laud PW, Nattinger AB) J Gen Intern Med 2007 Sep;22(9):1239-45 PMID: 17594131 PMCID: PMC2219762 06/28/2007
  • Disparities in colon cancer screening in the Medicare population. (Ananthakrishnan AN, Schellhase KG, Sparapani RA, Laud PW, Neuner JM) Arch Intern Med 2007 Feb 12;167(3):258-64 PMID: 17296881 02/14/2007
  • Relationship between number of breast cancer operations performed and 5-year survival after treatment for early-stage breast cancer. (Gilligan MA, Neuner J, Zhang X, Sparapani R, Laud PW, Nattinger AB) Am J Public Health 2007 Mar;97(3):539-44 PMID: 17267725 PMCID: PMC1805003 02/03/2007
  • Surgeon characteristics and variations in treatment for early-stage breast cancer. (Gilligan MA, Neuner J, Sparapani R, Laud PW, Nattinger AB) Arch Surg 2007 Jan;142(1):17-22 PMID: 17224496 01/17/2007
  • Moment-rotation responses of the human lumbosacral spinal column. (Guan Y, Yoganandan N, Moore J, Pintar FA, Zhang J, Maiman DJ, Laud P) J Biomech 2007;40(9):1975-80 PMID: 17101141 11/15/2006
  • Sex differences in outcomes of sinus surgery. (Mendolia-Loffredo S, Laud PW, Sparapani R, Loehrl TA, Smith TL) Laryngoscope 2006 Jul;116(7):1199-203 PMID: 16826060 07/11/2006
  • Trabecular bone density of male human cervical and lumbar vertebrae. (Yoganandan N, Pintar FA, Stemper BD, Baisden JL, Aktay R, Shender BS, Paskoff G, Laud P) Bone 2006 Aug;39(2):336-44 PMID: 16580272 04/04/2006
  • Bone density testing in older women and its association with patient age. (Neuner JM, Binkley N, Sparapani RA, Laud PW, Nattinger AB) J Am Geriatr Soc 2006 Mar;54(3):485-9 PMID: 16551317 03/23/2006
  • Obesity and risk for death due to motor vehicle crashes. (Zhu S, Layde PM, Guse CE, Laud PW, Pintar F, Nirula R, Hargarten S) Am J Public Health 2006 Apr;96(4):734-9 PMID: 16537660 PMCID: PMC1470534 03/16/2006
  • Predictive factors and outcomes in endoscopic sinus surgery for chronic rhinosinusitis. (Smith TL, Mendolia-Loffredo S, Loehrl TA, Sparapani R, Laud PW, Nattinger AB) Laryngoscope 2005 Dec;115(12):2199-205 PMID: 16369166 12/22/2005
  • Prolonging the return visit interval in primary care. (Schectman G, Barnas G, Laud P, Cantwell L, Horton M, Zarling EJ) Am J Med 2005 Apr;118(4):393-9 PMID: 15808137 04/06/2005
  • Incidence of sports and recreation related injuries resulting in hospitalization in Wisconsin in 2000. (Dempsey RL, Layde PM, Laud PW, Guse CE, Hargarten SW) Inj Prev 2005 Apr;11(2):91-6 PMID: 15805437 PMCID: PMC1730208 04/05/2005
  • A Bayesian approach to net health benefits: an illustration and application to modeling HIV prevention. (Johnson-Masotti AP, Laud PW, Hoffmann RG, Hayat MJ, Pinkerton SD) Med Decis Making 2004 Nov-Dec;24(6):634-53 PMID: 15534344 11/10/2004
  • An algorithm for the use of Medicare claims data to identify women with incident breast cancer. (Nattinger AB, Laud PW, Bajorunaite R, Sparapani RA, Freeman JL) Health Serv Res 2004 Dec;39(6 Pt 1):1733-49 PMID: 15533184 PMCID: PMC1361095 11/10/2004
  • Decentralization of breast cancer surgery in the United States. (Neuner JM, Gilligan MA, Sparapani R, Laud PW, Haggstrom D, Nattinger AB) Cancer 2004 Sep 15;101(6):1323-9 PMID: 15368323 09/16/2004
  • Objective testing and quality-of-life evaluation in surgical candidates with chronic rhinosinusitis. (Smith TL, Rhee JS, Loehrl TA, Burzynski ML, Laud PW, Nattinger AB) Am J Rhinol 2003 Nov-Dec;17(6):351-6 PMID: 14750611 01/31/2004
  • Economic expansion is a major determinant of physician supply and utilization. (Cooper RA, Getzen TE, Laud P) Health Serv Res 2003 Apr;38(2):675-96 PMID: 12785567 PMCID: PMC1360909 06/06/2003
  • Perceptions of environmental safety among individuals with spinal cord injury. (Cesar KW, Garavan R, Laud P, Hayat M, Fiedler IG) Am J Phys Med Rehabil 2002 Oct;81(10):798-800 PMID: 12362122 10/04/2002
  • Sexual health after spinal cord injury: a longitudinal study. (Fisher TL, Laud PW, Byfield MG, Brown TT, Hayat MJ, Fiedler IG) Arch Phys Med Rehabil 2002 Aug;83(8):1043-51 PMID: 12161824 08/06/2002
  • The presence or absence of an impalpable testis can be predicted from clinical observations alone. (Mesrobian HG, Chassaignac JM, Laud PW) BJU Int 2002 Jul;90(1):97-9 PMID: 12081779 06/26/2002
  • Economic and demographic trends signal an impending physician shortage. (Cooper RA, Getzen TE, McKee HJ, Laud P) Health Aff (Millwood) 2002 Jan-Feb;21(1):140-54 PMID: 11900066 03/20/2002
  • Does breast tumor location influence success of sentinel lymph node biopsy? (Ahrendt GM, Laud P, Tjoe J, Eastwood D, Walker AP, Otterson MF, Redlich PN) J Am Coll Surg 2002 Mar;194(3):278-84 PMID: 11893131 03/15/2002
  • Intracranial hemorrhage in children younger than 3 years: prediction of intent. (Wells RG, Vetter C, Laud P) Arch Pediatr Adolesc Med 2002 Mar;156(3):252-7 PMID: 11876669 03/07/2002
  • A Bayesian approach to the transmission/disequilibrium test for binary traits. (George V, Laud PW) Genet Epidemiol 2002 Jan;22(1):41-51 PMID: 11754472 01/05/2002
  • Probabilistic cost-effectiveness analysis of HIV prevention. Comparing a Bayesian approach with traditional deterministic sensitivity analysis. (Johnson-Masotti AP, Laud PW, Hoffmann RG, Hayat MJ, Pinkerton SD) Eval Rev 2001 Aug;25(4):474-502 PMID: 11480309 08/02/2001
  • Perceived accessibility versus actual physical accessibility of healthcare facilities. (Sanchez J, Byfield G, Brown TT, LaFavor K, Murphy D, Laud P) Rehabil Nurs 2000 Jan-Feb;25(1):6-9 PMID: 10754921 02/07/2001
  • Economics of managed care in spinal cord injury. (Fiedler IG, Laud PW, Maiman DJ, Apple DF) Arch Phys Med Rehabil 1999 Nov;80(11):1441-9 PMID: 10569439 11/24/1999
  • Influence of genetic and environmental factors on melanocytic naevi: a lesson from Turner's syndrome. (Zvulunov A, Wyatt DT, Laud PW, Esterly NB) Br J Dermatol 1998 Jun;138(6):993-7 PMID: 9747360 09/25/1998
  • Current and projected workforce of nonphysician clinicians. (Cooper RA, Laud P, Dietrich CL) JAMA 1998 Sep 2;280(9):788-94 PMID: 9729990 09/08/1998
  • The normal kidney growth rate during year 1 of life is variable and age dependent. (Mesrobian HG, Laud PW, Todd E, Gregg DC) J Urol 1998 Sep;160(3 Pt 2):989-93 PMID: 9719260 08/27/1998
  • Lack of effect of growth hormone therapy on the count and density of melanocytic naevi in children. (Zvulunov A, Wyatt DT, Laud PW, Esterly NB) Br J Dermatol 1997 Oct;137(4):545-8 PMID: 9390329 12/09/1997
  • Last update: 07/26/2015