| | Student Information In the 1990s the average number of graduates per year was 7. Currently, there are approximately 80 students in the department working towards a degree either part-time or full-time, and approximately 60% of these are doctoral students. The Department of Biostatistics attempts to maintain a balance between statistical theory and their application to real-world problems. An important part of the training of students is their interaction with faculty on research projects. Research training is often facilitated by a Graduate Student Research award (GSR) where a student while working for a degree works on a research project with a faculty member 20 hours a week. For working on the GSR the student receives a stipend, health coverage and a tuition waiver. There are approximately 30 students on GSR's in the Department of Biostatistics.
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Student Professional Development In addition to formal coursework there are a variety of activities that contribute to the student's professional development. These include experiences gained as a graduate student researcher, experience gained in the biostatistical consulting service, opportunities to collaborate with researchers in other disciplines, opportunities to travel and present at professional meetings and exposure to faculty and students in other statistical programs. Considerable experience is gained by students as a Graduate Student Researcher (GSR). In addition to providing financial support and a tuition waiver for their coursework, a GSR provides the opportunity for students to collaborate with investigators in other research disciplines. During the past year the general areas of collaboration in which the GSR worked included cancer (5), occupational and environmental health (3), radiology (2), epidemiology (4), nursing (1), psychiatry (2), genetics (2), childhood disease (3), behavioral and social science (3), and transplant surgery (1). GSR's work under faculty direction for 20 hours/week and sometimes make sufficient contributions to a project that they are included as co-authors on research publications. A partial list of recent collaborative publications in which GSR's have been included as co-authors is at the end of this section. Note that this list does not include the publications related to a student's dissertation. Students are also encouraged to develop the skills necessary for effective oral presentation. Students have the opportunity to present in research working groups, department and school-wide seminars, and at professional meetings. Informal working groups are formed between students and interested faculty where current literature on selected topics is reviewed and potential methodological research topics are explored. Although these are generally informal and within small working groups, students often present for further discussion current papers from statistical journals. Students have the opportunity for more formal presentations in a variety of settings. Each year the Dean sponsors a school-wide event where students present their research (both Master's and Doctoral). Both poster and oral presentations are given. From the group of presenters students are selected to present their findings at the annual meetings of the American Public Health Association. Additional presentations by students have been given at Pennsylvania Public Health Association Meetings, the Annual Meetings of Controlled Clinical Trials, and the Annual Banquet of the local chapter of the American Statistical Association. Advanced doctoral students have the opportunity to present their research on the development of statistical methodology at the Eastern North American Region Meetings of the Biometrics Society (ENAR). The week before the meetings a Departmental Seminar is given where all students presenting at ENAR give a seminar to Biostatistics Faculty and students. A partial list of recent student presentations is given at the end of this section. Additional opportunities for professional development are provided by the Seminar Series, conducted by the Department of Biostatistics. Seminar speakers include presenters from Pittsburgh as well as statisticians from other universities. A partial list of seminar speakers the last two years is given in the Course Offering section under BIOST 2025: Biostatistics Seminar under seminars. In addition, the statistics departments at Carnegie Mellon University and University of Pittsburgh Faculty of Arts and Sciences have seminar series that students can attend. The annual meeting of the Pittsburgh Chapter of the American Statistician Association provides additional opportunities for interaction between faculty and students from different academic statistical programs in Pittsburgh as well as statisticians from local industry. Each year the local chapter gives a "Student of the Year Award" to the outstanding student from each of the three local academic programs.
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Selected List of Student Publications with Collaborators from Other Departments (Excludes Publications Related to Thesis) Crago EA, Kerr ME, Kong Y, Baldisseri M, Horowitz M, Yonas H, Kassam A (2004). The Impact of Cardiac Complications on Outcome in the SAH population. Acta Neurol Scand, 110: 248-253, 2004. Fagiolini A, Kupfer DJ, Rucci, Scott JA, Novick D & Frank E (2004). Suicide attempts and ideation in patients with Bipolar I Disorder. Jounal of Clinical Psychiatry, 65:509-514. Daviss WB & Scott J (2004). A chart review of Cyproheptadine for stimulant-induced weight loss. Journal of Child and Adolescent Psychopharmacology, 14:65-74. Swartz HA, Frank E, Shear MK, Thase ME, Fleming MD & Scott J (2004). Brief interpersonal psychotherapy for depression in women: A pilot study. Psychiatric Services: 55:448-450. Dignam J, Ye Y, Colangelo L, Smith R, Mamounas E, Wieand S, Wolmark N (2003). Prognosis after rectal cancer in Blacks and Whites participating in adjuvant therapy randomized trials. Journal of Clinical Oncology, 21:413-420. Ebied OM, Federle MP, Carr BI, Pealer KM, Li W, Amesur N, Zajko A (2003). Evaluation of responses to chemoembolization in patients with unresectable hepatocellular carinoma. Cancer, 97(4):1042-50. Blachar A, Federle MP, Ferris JV, Lacomis JM, Waltz JS, Armfield DR, Chu G, Almusa O, Grazioli L, Balzano E, Li W (2003). Radiologists' performance in the diagnosis of liver tumors with central scars by using specific CT criteria. Radiology, 223(2):532-9. Li W, Arena VC, Sussman NB, Mazumdar S (2003). Model validation software for classification models using repeated partitioning: MVREP. Comput Methods Programs Biomed, 72(1):81-87. Sussman NB, Arena VC, Yu S, Mazumdar S, Thampatty BP (2003). Decision Tree SAR Models for Developmental Toxicity Based on an FDA/TERIS Database. SAR QSAR Environ Res., 14(2):83-96. Marsh GM, Stone RA, Esmen NA, Gula MJ, Gause CK, Peterson NJ, Meaney FJ, Rodney S, Prybylski D (1998). A case-control study of lung cancer mortality in four rural Arizona smelter towns. Arch Environ Health, 53(1):15-28. Jovanovic Z, Lin CJ, Chang CC (accepted). Uninsured vs Insured Population: Variations Among Nonelderly Americans. Journal of Health & Social Policy. Kastango KB, Kim Y, Dew MA, Mazumdar S, Mulsant BH, Rosen J, Reynolds CF, Pilkonis PA, and Pollock BG (2002). Verification of Scale Sub-Domains in Elderly Patients with Dementia: A Confirmatory Factor Analytic Approach. American Journal of Geriatric Psychiatry, 10(6):706-14. Blachar A, Federle MP, Li W, et al (in press). Radiologist Performance in the Diagnosis of Internal Hernia Using Specific CT Findings. Radiology. Campbell WL, Peterson MS, Federle MP, Li W, et al (in press). CT and Cholangiography in the Diagnosis of Biliary Tract Carcinoma Complicating Primary Sclerosing Cholangitis. American Journal of Roentgenology. Blachar A, Federle MP, Ferris JV, Li W, et al (2002). Radiologists' Performance in the Diagnosis of Liver Tumors with Central Scar Using Specific CT Criteria. Radiology, 223(2):532-9. Stone R.A., Youk A.O., Marsh G.M., Buchanich J.M., McHenry M.B., and
Smith T.J. (2001). Historical Cohort Study of U.S. Man-Made Vitreous Fiber Workers VII: Quantitative Exposure-Response Analysis of the Nested Case-Control Study of Respiratory System Cancer. Journal of Occupational and Environment Medicine, 43(9):779-92. Liu KS, Mazumdar S, Stone RA, Dew MA, Houck PR and Reynolds CF (2001). Accounting for covariate measurement error in a Cox model analysis of recurrence depression. Journal of Psychiatric Research, 35(3):177-85. Tan-Chiu E, Costantino JP, Wang J, Paik S, Butch C, Wickerham DL, Wolmark N, Fisher B (2003). The effect of Tamoxifen on Benign Breast Disease in Women at High Risk for Breast Cancer: Findings From the National Surgical Adjuvant Breast and Bowel Project's Breast Cancer Prevention Trial (BCPT). New England Journal in Medicine, 95(4):302-7. Wolmark N, Wang J, Mamounas E, Bryant J, Fisher B (2001). Preoperative chemotherapy in patients with operable berast cancer: Nine-year results from NSABP B-18. J Natl Cancer Ins., (30):96-102. Blachar A, Federle MP, Brancatelli G, Peterson MS, Oliver JH 3rd, Li W (2001). Radiologist performance in the diagnosis of internal hernia by using specific CT findings with emphasis on transmesenteric hernia. Radiology, 221(2):422-8. Campbell WL, Peterson MS, Federle MP, Siqueira ES, Slivka A, Grazioli L, Ichikawa T, Oliver JH 3rd, Kim T, Li W (2001). Using CT and cholangiography to diagnose biliary tract carcinoma complicating primary sclerosing cholangitis. American Journal of Roentgenology, 177(5):1095-100. Rockette HE, Li W, Brown ML, Britton CA, Towers JT, Gur D (2001). Statistical test to assess rank order imaging studies, in press, Academic Radiology, 8(1):24-30. Holbert JM, Costello P, Li W, Hoffman RM, Rogers RM (2001).CT Features of Pulmonary Alveolar Proteinosis. American Journal of Roentgenology, 176:1287-1294. Reis S, Costantino J, Wickerham L, Tan-Chiu E, Wang J, Kavanah M (2001). Lack of Cardiovascular Disease Risk Reduction from Tamoxifen Therapy: Results from the Breast Cancer Prevention Trial. Journal of National Cancer Institute, 93(1):16-21. Klem ML, Wing RR, Lang W, McGuire MT, Hill JO (2000). Does weight loss maintenance become easier over time? Obesity Research, 8(6):438-44. Klem ML, Wing RR, Chang CC, Lang W, McGuire MT, Sugerman HJ, Hutchison SL, Makovich AL, Hill JO (2000). A case-control study of successful maintenance of a substantial weight loss: individuals who lost weight through surgery versus those who lost weight through non-surgical means. International Journal of Obesity & Related Metabolic Disorders, 24(5):573-9. Rosen J, Bobys PD, Mazumdar S, Mulsant BH, Sweet RA, Yu K, Kollar M, and Pollock BG (1999). OBRA regulations and neuroleptic use: defining agitation using the Pittsburgh Agitation Scale and the Neurobehavioral Rating Scale. Annals of Long-term Care, 7(12) 429-436. Salamone LM, Cauley JA, Black DM, Simkin-Silverman L, Lang W, Gregg E, Palermo L, Epstein RS, Kuller LH, Wing R (1999). Effect of a lifestyle intervention on bone mineral density in premenopausal women: a randomized trial. American Journal of Clinical Nutrition, 70(1):97-103. Williams KV, Mullen M, Lang W, Considine RV, Wing RR (1999). Weight loss and leptin changes in individuals with type 2 diabetes. Obesity Research, 7(2): 155-63. McGuire MT, Wing RR, Klem ML, Lang W, Hill JO (1999). What predicts weight regain in a group of successful weight losers? Journal of Consulting & Clinical Psychology, 67(2):177-85. Mazumdar S, Liu KS, Ahnn S, Houck PR, and Reynolds CF (1999). Transition (Markov) models for the analysis of survival times in clinical psychiatric research. Communications in Statistics-Simulations, 28(1), 165-176. Mazumdar S, Liu K, Houck PR, and Reynolds CF (1999). Intent-to-treat analysis for longitudinal clinical trials: coping with the challenge of missing values. Journal of Psychiatric Research, 33, 87-95. Mazumdar S, Xu Y, Mattison DR, Sussman N, and Arena VC (1999). Reproductive Risk Assessment with Longitudinal data. The Journal of Applied Statistical Sciences IV 59-75. Mazumdar S, Begley A, Houck PR Yang Y, Reynolds CF and Kupfer DJ. Residual Analysis in Random Regression using SAS and S-PLUS (1999). Computer Methods and Programs in Biomedicine 58 , 281-282. Jakicic JM, Wing RR, Lang W (1998). Bioelectrical impedance analysis to assess body composition in obese adult women: the effect of ethnicity. International Journal of Obesity & Related Metabolic Disorders, 22(3):243-9. Wing RR, Venditt E, Jakicic JM, Polley BA, Lang W (1998). Lifestyle intervention in overweight individuals with a family history of diabetes. Diabetes Care, 21(3):350-9. Dignam JJ, Redmond CK, Fisher B, Costantino JP, Edwards BK (1997). Prognosis among black women and white women with node-negative breast cancer: Findings from two randomized clinical trials of the National Surgical Adjuvant Breast and Bowel Project. Cancer, 80:80-90. Stone RA, Marsh GM, Gula MJ, Gause CK, Esmen NA (1997). Quantifying individual-level lifetime residential exposure to smelter emissions in four Arizona copper smelter communities: missing data issues. Proceedings of the 2nd International Congress on Hazardous Waste: Impact on Human and Ecological Health, pp. 201-214. Fine MJ, Medsger AR, Stone RA, Marrie TJ, Coley CM, Singer DE, Akkad H, Hough LJ, Lang W, Ricci E, Polenik DM, Kapoor WN (1997). The hospital discharge decision in patients with community-acquired pneumonia: results from the pneumonia PORT cohort study. Arch Int Med, 157:47-56. Mulsant BH, Mazumdar S, Pollock BG, Sweet RA, Rosen J and Lo K (1997). Methodological issues in characterizing treatment response in demented patients with behavioral disturbances. International Journal of Geriatric Psychiatry, 12:537-547. Sweet RA, Pollock BG, Mulsant BH, Rosen J, Lo KH, Yao JK, Henteleff RA, and Mazumdar S (1997). Association of Plasma Homovanillate with Behavioral Symptoms in Patients Diagnosed with Dementia. Biological Psychiatry, 42:1016-1023. Fisher B, Dignam JJ, Mamounas EP, Costantino JP, et al (1996). Sequential methotrexate and 5-fluorouracil in the treatment of node-negative breast cancer patients with estrogen receptor negative tumors. Journal of Clinical Oncology, 14: 1982-1992. Wing RR, Sinha MK, Considine RV, Lang W, Caro JF (1996). Relationship between weight loss maintenance and changes in serum leptin levels. Hormone & Metabolic Research, 28(12):698-703. Marsh GM, Stone RA, Esmen NA, Henderson VL, Lee KY (1996). Mortality among chemical workers in a factory where formaldehyde was used. Occup Env Med, 53: 613-627. Stone RA, Marsh GM, Gula MJ, Esmen NA, Gause CK (1995). Quantifying individual-level lifetime residential exposure to SO2 emissions in the Gila River Basin, Arizona, copper smelter communities. Epidemiology, 6: S44. Stone RA, Marsh GM, Youk AO, Enterline PE (1995). Modeling the combined effects of arsenic exposure and cigarette smoking on respiratory cancer risk for copper smelter workers: methodological issues. Epidemiology, 6: S114. Brown AE, Vahey MT, Zhou SYJ, Chung RCY, Ruiz NM, Hofheinz D, Lane JR, Mayers DL and the RV43 Study Group (1995). Quantitative relationship of serum P24 antigen with plasma HIV RNA and P24 antibody in HIV-infected subjects on antiretroviral therapy. The Journal of Infectious Diseases, 172: 1091-1095. Nozza RJ, Bluestone CD, Kardatzke D, Bachman R (1994). Identification of middle ear effusion by aural acoustic admittance and otoscopy. Ear & Hearing, 15 (4): 310-23. Stone RA, Marsh GM, Henderson VL, Owens AD, Smith TJ, Quinn MM (1994). Statistical power to detect occupationally-related respiratory cancer risk in a cohort of female employees in the U.S. man-made vitreous fiber industry. J Occup Med, 36: 899-901. Fine MJ, Smith MA, Carson CA, Meffe F, Sankey SS, Weissfeld LA, Detsky AS, Kapoor WN (1994). Efficacy of pneumococcal vaccination in adults. A meta-analysis of randomized controlled trials. Archives of Internal Medicine, 154 (23): 2666-77. Mandel EM, Kardatzke D, Bluestone CD, Rockette HE (1993). A comparative evaluation of cefaclor and amoxicillin in the treatment of acute otitis media. Pediatric Infectious Disease Journal, 12 (9): 726-32. Galai N, Munoz A, Carey VJ, Chen K, Chmeil J and Zhou SYJ (1993). Tracking of markers and onset of disease among HIV-1seroconverters. Statistics in Medicine, 12 (22). Return to top
Selected List of Student Presentations ENAR Meetings, March 2006
Joint Statistical Meetings, August 2005
ENAR Meetings, March 2005
Joint Statistical Meetings, August 2004
ENAR Meetings, March 2004
Society for Critical Care Medicine, February 2004
Joint Statistical Meetings, August 2003
ENAR Meetings, March 2003
International Conference on Recent Trends in Probabilitiy and Statistics, January 2003
25th Annual San Antonio Breast Cancer Symposium, December 2002
Joint Statistical Meetings, August 2002
ENAR Meetings, March 2002
Joint Statistical Meetings, August 2001
ENAR Meetings, March 2001
Society for Clinical Trials Meetings, May 2001
Joint Statistical Meetings, August 2000
ENAR Meetings, March 2000
Joint Statistical Meetings, August 1999
ENAR Meetings, March 1999
Joint Statistical Meetings, August 1998
ENAR Meetings, April 1998
Return to top ENAR Meetings held in Tampa, Florida, March 2006 Components of the Bootstrap-Variance of the Area under the ROC Curve. Andriy Bandos; Howard E. Rockette; David Gur. ENAR Biometrics Society Meeting, Tampa, Florida, March 2006. An Extension of Latent Variable Model for Informative Intermittent Missing Data.Li Qin; Lisa A. Weissfeld; Melissa Kalarchian; Marsha Marcus. ENAR Biometrics Society Meeting, Tampa, Florida, March 2006. Return to top
Joint Statistical Meetings held in Minneapolis, MN, August 2005
Likelihood-based Approach for Left-censored Covariates. Gina D'Angelo and Lisa Weissfeld. Joint Statistical Meeting, Minneapolis , MN , August 2005. Return to top ENAR Meetings held in Austin, Texas, March 2005 Estimating Equation Approach for Truncated Covariates. Gina D'Angelo , Lisa Weissfeld. ENAR Biometrics Society Meeting, Austin, Texas, March 2005. A Latent Class Model for Longitudinal Binary Reponse Data with Nonignorable Missingness. Li Qin , Changyu Shen, Lisa Weissfeld. ENAR Biometrics Society Meeting, Austin, Texas, March 2005. A Permutation Test Sensitive to Differences in Areas to Comparing ROC Curves from a Paired Design. Andriy Bandos , Howard Rockette, and David Gur. ENAR Biometrics Society Meeting, Austin, Texas, March 2005. Using Trajectories from a Bivariate Growth Curve of Covariates in a Cox Model Analysis. Qianyu Dang , Sati Mazumdar, and Stewart Anderson. ENAR Biometrics Society Meeting, Austin, Texas, March 2005. A Bayesian Adjustment of Covariate Missclassification with Correlated Binary Outcome Data. Dianx Ren and Roslyn Stone. ENAR Biometrics Society Meeting, Austin, Texas, March 2005. Return to top Joint Statistical Meetings held in Toronto, Ontario, Canada, August 2004 A Decision-tree-model Based on ROC Analysis Predicting Progression of Type I Diabetes Mellitus. Shui Yu*, Sati Mazumdar, Nancy B. Sussman, Vincent C. Arena, and Dorothy J. Becker. Joint Statistical Meeting, Toronto, Ontario, Canada, August 2004. The Partial Regression Approach to Fit GAMs in Air Pollution Research. Shui He*, Sati Mazumdar, and Vincent C. Arena. Joint Statistical Meeting, Toronto, Ontario, Canada, August 2004. A Novel Approach of Estimation for Additive Rate Regression Models with Parametric Underlying Failure-time Distributions. M. Brent McHenry*, Stuart R. Lipsitz, and Debajyoti Sinha. Joint Statistical Meeting, Toronto, Ontario, Canada, August 2004. Return to to ENAR Meetings held in Pittsburgh, Pennsylvania, March 2004 Extreme Sibling Pair Designs for Quantitative Trait Locus Mapping. Jin P. Szatkiewicz*, and Eleanor Feingold. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. Semiparametric Maximum Likelihood for Missing Covariates in Parametric Regression. Zhiwei Zhang*, and Howard E. Rockette. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. A Comparative Study of the Use of GAM and GLM in Air Pollution Research. Shui He*, Sati Mazumdar, and Vincent C. Arena. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. Modeling Unequally Spaced Bivariate Growth Curve with a Kalman Filter Approach. Qianyu Dang*, Stewart J. Anderson, and Sati Mazumdar. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. Parametric Estimation for Additive Rate Regression Models. M. Brent McHenry*, Stuart R. Lipsitz. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. Modeling of Recurrent Event Survival Data Based on Extensions of the Andersen-Gill Model. Zekarias Berhane*, and Lisa A. Weissfeld. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. Estimation of Parameters for Binary Outcome Data in the Presence of Missing Covariate Information. Gina M. D'Angelo*, and Lisa Weissfeld. ENAR Biometrics Society Meeting, Pittsburgh, Pennsylvania, March 2004. Return to top Society of Critical Care Medicine 33rd International Educational & Scientific Symposium, orlando, Florida, February 2004 Relationship Between Aneurysm Site and Outcomes Following Subarachnoid Hemorrhage. Crago EA, Kong Y*, and Kerr ME. Society of Critical Care Medicine 33rd International Educational & Scientific Symposium, Orlando, Florida 2004. Return to top Joint Statistical Meetings held in San Francisco, California, August 2003 A Modified Estimator for the Cumulative Covariate Effect in Aalen's Additive Risk Model. Michael McHenry*, Chung-Chou Chang, Stewart Anderson, Howard Rockette, Lisa Weissfeld, Mark Roberts. Joint Statistical Meeting, San Francisco, California, August 2003. An Empirical Bayesian Method for Oligonucelotide Microarray Data. Yan Lin*, Eleanor Feingold and Lisa Weissfeld. Joint Statistical Meeting, San Francisco, California, August 2003. Mapping genes for quantitative traits using discordant sibling pairs - new statistics and new possibilities. Jin Peng Szatkiewicz *, Eleanor Feingold. Joint Statistical Meeting, San Francisco, California, August 2003. Return to top ENAR Meetings held in Tampa, Florida, March 2003 Model Assessment and Outlier Detection for a Pseudospline-based Survival Model. Zekarias Berhane*, Joyce Chang, and Lisa Weissfeld. ENAR Biometrics Society Meeting, Tampa, Florida, March 2003. Estimation of Parameterse for Bivariate Survival Data in the Presence of Missing Covariate Data. Gina M. D'Angelo* and Lisa Weissfeld. ENAR Biometrics Society Meeting, Tampa, Florida, March 2003. Modeling Excess Zeros in Ordinal Data. Mary E. Kelley* and Stewart Anderson. ENAR Biometrics Society Meeting, Tampa, Florida, March 2003. A Generalized Imputation Method Based on Propensity Score. Hsiao-Lan Wei* and Howard Rockette. ENAR Biometrics Society Meeting, Tampa, Florida, March 2003. Return to top International Conference on Recent Trends in Probablity and Statistics: Theory and Applications and Rockefeller Foundation-Funded Dissemination Seminar on Fertility, January 2003 A Resampling Approach for Adjustment in Prediction Models for Covariate Measurement Error. Mazumdar S, Li Wei*, Arena VC, Sussman NB. International Conference on Recent Trends in Probablity and Statistics: Theory and Applications and Rockefeller Foundation-Funded Dissemination Seminar on Fertility, Gauhati University, Guwahati, Assam, India January 2003. Return to top 25th Annual San Antonio Breast Cancer Symposium, December 2002 Benign Breast Disease and the Risk of Subsequent Invasive Cancer: Findings from the National Surgical Adjuvant Breast and Bowel Project's Breast Cancer Trial. Wang J*, Costantino JP, Tan-Chiu E, Wickerham DL, Wolmark N. 25th Annual San Antonio Breast Cancer Symposium, December 2002. Return to top Joint Statistical Meetings held in New York, New York, August 2002 Temporal spatial pattern extraction in PET data using partial lease squares. Lei Xu*, Mazumdar S, Price. Joint Statistical Meeting, New York, New York, August 2002. Nonparametric tree-structured modeling for interval-censored survival data . Yanming Yin *, Stewart Anderson. Joint Statistical Meeting, New York, New York, August 2002. Return to top ENAR Meetings held in Arlington, Virginia, March 2002 Flexible Modeling of Recursive Multiple Event Survival Dataset Analogous to Anderson and Gill. Zekarias Berhane* and Lisa Weissfeld. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. A Comparison of Test Statistics for Cox's Proportional Hazards Assumption. Rana Z. Ezzeddine* and Lisa Weissfeld. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. Estimation of Covariate Effects in Aalen's Additive Risk Model Using Smoothing Splines. Michael Brent McHenry*, Stewart J. Anderson, Chung-Chou H. Chang, and Lisa Weissfeld. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. Implications of Loss Functions on Bayesian Evaluation of Multiple Treatment Effects. Maria K. Mor* and Stewart J. Anderson. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. Conditional Time Dependent Receiver Operating Characteristic Curves. Jiping Wang* and Howard E. Rockette. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. An Imputation Method for Intermittently Missing Values. Hsiao-Lan Wei* and Howard E. Rockette. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. A Copula-Based Semiparametric Model for Meta-Analytic Assessment of Surrogate Endpoints. Zhiwei Zhang* and Lisa A. Weissfeld. ENAR Biometrics Society Meeting, Arlington, Virginia, March 2002. Return to top Joint Statistical Meetings, August 2001 Flexible Models for Multiple Time-to-Event Data Using Penalized B-Splines . Zekarias Berhane*, Lisa Weissfeld. Joint Statistical Meeting, August 2001. Exponential tree-structured modeling fo rinterval-censored survival data. Yanming Yin *, Stewart Anderson. Joint Statistical Meeting, August 2001. Return to top ENAR Meetings held in Charlotte, North Carolina, March 2001 Validation of Ensemble Based Prediction Models Using SAS and Winbugs. Wei Li*, Vincent Arena, Kuo-Szu Chiang. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. SAS Macros for Re-partitioning Model Validation Methods. Wei Li*, Arena VC, Chiang KS. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. Resampling Approach for Estimating Prediction Error and for Adjusting Logistic Regression Models for Covariate Measurement Error. Wei Li*, Mazumdar S, Sussman N, Arena VC. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. A Comparison of Nonparametric Methods for Assessing Treatment Effect in a Two-way Crossed Classification. Zhiwei Zhang*, Howard E. Rockette. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. Using Propensity Scores to Estimate Missing Data in Clinical Trials of Otitis Media. Hsiao-Lan Wei*, Howard E. Rockette. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. Accounting for Correlation Between Replicates of a Covariate Measured with Error in the Cox Model. Kenneth Liu*, Sati Mazumdar, Roslyn A. Stone, and Charles F. Reynolds III. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. Regression Diagnostics Using the Martingale Residuals for the Additive Hazards Model. Zekarias Berhane*, Lisa A. Weissfeld. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. Estimation of the Survival Function for Gray's Piecewise-Constant Time-Varying Coefficients Model. Zdenek Valenta*, Lisa A. Weissfeld. ENAR Biometrics Society Meeting, Charlotte, North Carolina, March 2001. Society for Clinical Trials Meetings held in Denver, Colorado,
May 2001 Is Tumor Response A Good Marker Of Treatment Efficacy? RZ Ezzeddine*, SJ Anderson, R Smith and A Brown. Society for Clinical Trials 22nd Annual Meeting, Denver, Colorado, May 2001. Joint Statistical Meetings held in Indianapolis, Indiana, August 2000 A Method for Combining Covariate Data Obtained by Multiple Sampling Schemes. Christine Gause*, Roslyn Stone, Gary Marsh, Joseph Costantino, Sati Mazumdar, Evelyn Talbot. Joint Statistical Meeting, Indianapolis, Indiana, August 2000. Structure-Activity Relationship Models: Using the Results of Model Ensembles. Kuo-Szu Chiang*, Nancy B. Sussman, Sati Mazumdar, Vincent C. Arena. Joint Statistical Meeting, Indianapolis, Indiana, August 2000. A Comparison of Models for the Analysis of Depression Remission Data. Sati Mazumdar, Zekarias Berhane*, Lisa A. Weissfeld, Charles Reynolds. Joint Statistical Meeting, Indianapolis, Indiana, August 2000. A Copula-Based Parametric Model for the Analysis of Repeated Measures Data. Wei Lang*, Lisa A. Weissfeld. Joint Statistical Meeting, Indianapolis, Indiana, August 2000. ENAR Meetings held in Chicago, Illinois, March 2000 Modeling missing data in repeated measures using a copula-based approach. Wei Lang* and Lisa A. Weissfeld. International Biometrics Society, Eastern North American Region, Chicago, Illinois, March 2000. Estimating Parameters in Cox Models with Mixed-Type Covariates. Kenneth Liu*, Sati Mazumdar, and Charles F. Reynolds III. International Biometrics Society, Eastern North American Region, Chicago, Illinois, March 2000. Estimating Tetrad Crossover Frequency Distribution From Recombination Data. Kai Yu* and Eleanor Feingold. International Biometrics Society, Eastern North American Region, Chicago, Illinois, March 2000. Spatio-Temporal Hierarchical Models for Analyzing China IDDM Incidence Rates. Kuo-Szu Chiang*, Vincent C. Arena and Sati Mazumdar. International Biometrics Society, Eastern North American Region, Chicago, Illinois, March 2000. Estimation of the Survival Function Based on the Additive Ingenuity Model. Zekarias Berhane* and Lisa Weissfeld. International Biometrics Society, Eastern North American Region, Chicago, Illinois, March 2000. Estimation of the Survival Function for Gray's Piecewise Constant Time Varying Coefficients Model. Zdenek Valenta* and Lisa Weissfeld. International Biometrics Society, Eastern North American Region, Chicago, Illinois, March 2000. Joint Statistical Meetings held in Baltimore, Maryland, August 1999 Use of Area Under the ROC Curve as a Method of Predicting Patient Outcome. Jiping Wang* and Howard Rockette. Joint Statistical Meeting, Baltimore, Maryland, August 1999 (proceeding published). Goodness of Fit Analysis for the General Hazard Regression Models. Chung-Chou Chang* and Lisa Weissfeld. Joint Statistical Meeting, Baltimore, Maryland, August 1999. Application of Copula to Repeated Measures Data. Wei Lang* and Lisa Weissfeld. Joint Statistical Meeting, Baltimore, Maryland, August 1999. Recursive Martingale Residuals for Cox's Proportional Hazards Model. Chung-Chou Chang* and Lisa Weissfeld. Joint Statistical Meeting, Baltimore, Maryland, August 1999. Markov Chain Models on Multivariate Repeated Categorical Data Analysis. Wei Tian* and Stewart Anderson. International Biometrics Society, Eastern North American Region, Atlanta, Georgia, March 1999. Return to top
ENAR Meetings held in Atlanta, Georgia, March 1999 Applications of Copulas to Repeated Measures Data. Wei Lang* and Lisa A. Weissfeld. International Biometrics Society, Eastern North American Region, Atlanta, Georgia, March 1999. Comparison of Two Distributions in the Presence of Length Bias. Kyunghee K. Song* and Lisa A. Weissfeld. International Biometrics Society, Eastern North American Region, Atlanta, Georgia, March 1999. Methods for analyzing distributions of crossover events during meiosis. K. Yu* and Eleanor Feingold. International Biometrics Society, Eastern North American Region, Atlanta, Georgia, March 1999. Joint Statistical Meetings held in Dallas, Texas, August 1998 Recursive Martingale Residuals for Cox's Proportional Hazards Model. Chung Chou Chang* and Lisa Weissfeld. Joint Statistical Meeting, Dallas, Texas 1998. ENAR Meetings held in Pittsburgh, Pennsylvania, April 1998 Analysis of Repeated Toxicity Data in a Clinical Trial. Wei Tian* and Stewart Anderson. Eastern Northern American Region (ENAR) Biometrics Meeting, Pittsburgh, Pennsylvania, April 1998. Identification of Disease Risk Factors with Neural Networks. Douglas Landsittel* and Vincent C. Arena. Eastern North American Region (ENAR) Biometrics Meeting, Pittsburgh, Pennsylvania, April 1998. Sample Size Determination for Comparing More Than Two Treatment Groups Using Cluster Randomization. Fei-Na Chen*, Lisa Weissfeld and Sang Ahnn*. Eastern North American Region (ENAR) Biometrics Meeting, Pittsburgh, Pennsylvania, April 1998. Performance of Nonparametric Maximum Likelihood Estimates in a Length Biased Sample. Kyunghee Song* and Lisa Weissfeld. Eastern North American Region (ENAR) Biometrics Meeting, Pittsburgh, Pennsylvania, April 1998. Copula Based Bivariate Poisson Modeling. Wei Lang* and Lisa Weissfeld. Eastern North American Region (ENAR) Biometrics Meeting, Pittsburgh, Pennsylvania, April 1998. Improved Martingale Residuals for Cox's Proportional Hazard's Model. Chung-Chou Ho* and Lisa Weissfeld. Eastern North American Region (ENAR) Biometrics Meeting, Pittsburgh, Pennsylvania, April 1998. * student presenter. |  |
