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Ellen Roecker

Ellen B. Roecker

Senior Scientist, Department of Biostatistics and Medical Informatics

PhD, University of Texas School of Public Health, 1988

Office Location:

211 Wisconsin Alumni Research Foundation (WARF)
610 Walnut Street
Madison, WI 53726-2397


Phone: 608-263-4899
Fax: 608-263-0415

Research Interests
Design, conduct and analysis of multicenter clinical trials, interim monitoring of clinical trial data, multiple endpoints.

Selected Publications
  • Roecker EB: Prediction error and its estimation for subset-selected models. Technometrics 33:459-468, 1991.
  • Zimmerman SW, Ahrens E, Johnson CA, Craig W, Leggett J, O'Brien M, Oxton L, Roecker EB, Engeseth S: Randomized, controlled trial of prophylactic rifampin for peritoneal dialysis related infection. American Journal of Kidney Disease 2:225-231, 1991.
  • Pirsch JD, D'Alessandro AM, Sollinger HW, Hoffman RM, Roecker EB, Voss BJ, Lorentzen DF, Knechtle SJ, Reed A, Kalayoglu M, and Belzer FO: The effect of donor age, recipient age, and HLA match on immunologic graft survival in cadaver renal transplant recipients. Transplantation 53:55-59, 1992.
  • Roecker EB, Pulos E, Bresnick GH, Severns M: Characterization of the ERG scotopic B-wave amplitude in diabetic and normal subjects. Investigative Ophthalmology & Visual Science 33:1575-1583, 1992.
  • Messing EM, Young TB, Hunt VB,Roecker EB, Vaillancourt AM, Crowley WP, Greenberg EB, Kuglitsch ME, Wegenke JD: Home screening for hematuria: Results of a multi-clinic study. Journal of Urology 148:289-292, 1992.
  • Kemnitz JW, Weindruch R, Roecker EB, Crawford K, Kaufman PL, and Ershler WB: Dietary restriction of adult male Rhesus monkeys: Design, methodology and preliminary findings from the first year of study. Journal of Gerontology 48:B17-B26, 1993.
  • Pirsch JD, D'Alessandro AM,Roecker EB, Knechtle SJ, Reed A, Sollinger HW, Kalayoglu M and Belzer FL: A controlled double blind randomized trial of verapamil and cyclosporine in cadaver renal transplant patients. American Journal of Kidney Diseases 21:189-195, 1993.
  • Oxton LL, Zimmerman SW, Roecker EB, Wakeen M: Risk factors for peritoneal dialyses related infections. Peritoneal Dialysis International 14:137-144, 1994.
  • Rosenbek JC, Robbins J,Roecker EB, Coyle JL, Wood JL: A penetration-aspiration scale. Dysphagia 11:93-98, 1996.
  • Rosenbek J, Roecker EB, Wood JL, Robbins J: Thermal application reduces the duration of stage transition in dysphagia after stroke. Dysphagia 11:225-223, 1996.
  • Robbins J, Coyle J, Rosenbek J,Roecker EB, Wood J: Differentiation of normal and abnormal airway protection during swallowing using the penetration aspiration scale. Dysphagia, 14:228-232,1999.
  • O'Neill WW, Serruys P, Knudtson M, van Es GA, Timmis GC, van der Zwann C, Kleiman J, Gong J,Roecker EB, Dreiling R, Alexander J, Anders R: Long-term treatment with a platelet glycoprotein-receptor antagonist after percutaneous coronary revascularization. New England Journal of Medicine 342:1316-1324, 2000.
  • Fisher MR,Roecker EB, DeMets DL: The role of an independent statistical analysis center in the industry-modified National Institutes of Health model. Drug Information Journal 35:115-129, 2001.
  • Packer M, Coats AJS, Fowler MB, Katus HA, Krum H, Mohacsi P, Rouleau JL, Tendera M, Castaigne A, Staiger C, Curtin EL, Roecker EB, Schultz MK, DeMets DL: Effect of carvedilol on the survival of patients with severe chronic heart failure. New England Journal of Medicine 344:1651-1658, 2001.
  • Packer M, Fowler MB, Roecker EB, Coats AJS, Katus HA, Krum H, Mohacsi P, Rouleau JL, Tendera M, Staiger C, Holcslaw TL, Amann-Zalan I, DeMets DL: Effect of carvedilol on the morbidity of patients with severe chronic heart failure. Circulation 106:2194-2199, 2002.
  • Krum H, Roecker EB, Mohacsi P, Rouleau JL, Tendera M, Coats AJS, Katus HA, Fowler MB, Packer M: Effects of initiating carvedilol in patients with severe chronic heart failure. Journal of the American Medical Association 289:712-718, 2003.
  • Rouleau, J.L., Roecker EB, Tendera, M., Mohacsi, P., Krum, H., Katus, H.A., Fowler, M.B., Coats, A.J.S. and Packer, M. Influence of pretreatment systolic blood pressure on the effects of carvedilol in patients with severe chronic heart failure: The COPERNICUS study, Journal of the American College of Cardiology 43:1423-1429,2004.
  • Krum, H., Haas, S., Eichhorn E., Ghali, J., Gilbert E., Lechat, P., Packer, M., Roecker EB, Verkenne, P., Wedel, H., Wilkstrand J. Prognostic benefit of beta-blockers in patients not receiving ACE inhibitors. European Heart Journal 26:2154-2158, 2005.
  • Lowes, B.D., Shakar, S.F., Metra, M., Feldman, A.M., Eichhorn, E., Freytag, J.W., Gerber, M.J., Liard, J-F., Hartman, C., Gorcznski, R., Evans, G., Linseman, J.V., Stewart, J., Robertson, A.D., Roecker EB, DeMets, D.L. and Bristow, M.R. Rationale and design of the enoximone clinical trials program. Journal of Cardiac Failure 11:659-669, 2005.
  • Krum, H., Mohacsi, P., Katus, H.A., Tendera, M., Rouleau, J.L., Fowler, M.B., Coats, A.J., Roecker EB and Packer, M. Are beta-blockers needed in patients receiving spironolactone for severe chronic heart failure? An analysis of the COPERNICUS study, American Heart Journal 151:55-61, 2006..
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