Medical College of Wisconsin
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Purushottam W. Laud PhD

Purushottam W. Laud PhD


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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Current and projected workforce of nonphysician clinicians. (Cooper RA, Laud P, Dietrich CL) JAMA 1998 Sep 2;280(9):788-94 PMID: 9729990
  • 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
  • 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
  • Last update: 07/26/2015