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Daniel O. Scharfstein, MS, ScD

Title: Chief, Division of Biostatistics

Languages spoken: English

Academic Information

Departments: Population Health Sciences - Professor, Family & Preventive Medicine - Adjunct Professor, Orthopaedics - Adjunct Professor

Divisions: Biostatistics, DFPM Administration

Academic Office Information

Education History

Doctoral Training Harvard School of Public Health
Graduate Training Harvard School of Public Health
Graduate Training Georgia Institute of Technology
Operations Research
Undergraduate University of Pennsylvania
Applied Science
Undergraduate University of Pennsylvania

Selected Publications

  1. Duan R, Cao M, Ning Y, Zhu M, Zhang B, McDermott A, Chu H, Zhou X, Moore JH, Ibrahim JG, Scharfstein DO, Chen Y (2019). Global identifiability of latent class models with applications to diagnostic test accuracy studies: A Gröbner basis approach. Biometrics, 76(1), 98-108.
  2. Gitajn IL, Reider L, Scharfstein DO, OToole RV, Bosse MJ, Castillo RC, Jevsevar DS, Pollak AN, METRC (2019). Variability in Discharge Disposition Across US Trauma Centers After Treatment for High-Energy Lower Extremity Injuries. J Orthop Trauma, 34(3), e78-e85.
  3. Magnusson BP, Schmidli H, Rouyrre N, Scharfstein DO (2019). Bayesian inference for a principal stratum estimand to assess the treatment effect in a subgroup characterized by postrandomization event occurrence. Stat Med, 38(23), 4761-4771.
  4. Scharfstein DO (2019). A constructive critique of the draft ICH E9 Addendum. Clin Trials, 16(4), 375-380.
  5. Mitchell SL, Obremskey WT, Luly J, Bosse MJ, Frey KP, Hsu JR, MacKenzie EJ, Morshed S, OToole RV, Scharfstein DO, Tornetta P 3rd, Major Extremity Trauma Rehabilitation Consortium METRC (2020). Inter-Rater Reliability of the Modified Radiographic Union Score for Diaphyseal Tibial Fractures With Bone Defects. J Orthop Trauma, 33(6), 301-307.
  6. Scharfstein DO, McDermott A (2018). Global sensitivity analysis of clinical trials with missing patient-reported outcomes. Stat Methods Med Res, 28(5), 1439-1456.
  7. Castillo RC, Huang Y, Scharfstein D, Frey K, Bosse MJ, Pollak AN, Vallier HA, Archer KR, Hymes RA, Newcomb AB, MacKenzie EJ, Wegener S, Major Extremity Trauma Research Consortium METRC, Hsu JR, Karunakar MA, Seymour RB, Sims SH, Flores E, Churchill C, Hak DJ, Henderson CE, Mir HR, Chan DS, Shah AR, Steverson B, Westberg J, Gary JL, Achor TS, Choo A, Munz JW, Porrey M, Hendrickson S, Breslin MA, McKinley TO, Gaski GE, Kempton LB, Sorkin AT, Virkus WW, Hill LC, Jones CB, Sietsema DL, OToole RV, Ordonio K, Howe AL, Zerhusen TJ Jr, Obremskey W, Boyce RH, Jahangir AA, Molina CS, Sethi MK, Vanston SW, Carroll EA, Drye DY, Holden MB, Collins SC, Wysocki E (2019). Association Between 6-Week Postdischarge Risk Classification and 12-Month Outcomes After Orthopedic Trauma. JAMA Surg, 154(2), e184824.
  8. Potter BK, Sheu RG, Stinner D, Fergason J, Hsu JR, Kuhn K, Owens JG, Rivera J, Shawen SB, Wilken JM, DeSanto J, Huang Y, Scharfstein DO, MacKenzie EJ (2018). Multisite Evaluation of a Custom Energy-Storing Carbon Fiber Orthosis for Patients with Residual Disability After Lower-Limb Trauma. J Bone Joint Surg Am, 100(20), 1781-1789.
  9. Hernn MA, Scharfstein D (2018). Cautions as Regulators Move to End Exclusive Reliance on Intention to Treat. Ann Intern Med, 168(7), 515-516.
  10. Scharfstein D, McDermott A, Daz I, Carone M, Lunardon N, Turkoz I (2017). Global sensitivity analysis for repeated measures studies with informative drop-out: A semi-parametric approach. Biometrics, 74(1), 207-219.
  11. Colantuoni E, Scharfstein DO, Wang C, Hashem MD, Leroux A, Needham DM, Girard TD (2018). Statistical methods to compare functional outcomes in randomized controlled trials with high mortality. BMJ, 360, j5748.
  12. Lunardon N, Scharfstein D (2017). Comment on 'Small sample GEE estimation of regression parameters for longitudinal data'. [Letter to the editor]. Stat Med, 36(22), 3596-3600.
  13. Wegener ST, Carroll EA, Gary JL, McKinley TO, OToole RV, Sietsema DL, Castillo RC, Frey KP, Scharfstein DO, Huang Y, Collins SCJ, MacKenzie EJ, Major Extremity Trauma Research Consortium METRC (2017). Trauma Collaborative Care Intervention: Effect on Surgeon Confidence in Managing Psychosocial Complications After Orthopaedic Trauma. J Orthop Trauma, 31(8), 427-433.
  14. Wang C, Scharfstein DO, Colantuoni E, Girard TD, Yan Y (2016). Inference in randomized trials with death and missingness. Biometrics, 73(2), 431-440.
  15. Bosse MJ, Murray CK, Carlini AR, Firoozabadi R, Manson T, Scharfstein DO, Wenke JC, Zadnik M, Castillo RC, METRC (2017). Assessment of Severe Extremity Wound Bioburden at the Time of Definitive Wound Closure or Coverage: Correlation With Subsequent Postclosure Deep Wound Infection (Bioburden Study). J Orthop Trauma, 31 Suppl 1, S3-S9.
  16. OToole RV, Gary JL, Reider L, Bosse MJ, Gordon WT, Hutson J, Quinnan SM, Castillo RC, Scharfstein DO, MacKenzie EJ, METRC (2017). A Prospective Randomized Trial to Assess Fixation Strategies for Severe Open Tibia Fractures: Modern Ring External Fixators Versus Internal Fixation (FIXIT Study). J Orthop Trauma, 31 Suppl 1, S10-S17.
  17. OToole RV, Joshi M, Carlini AR, Murray CK, Allen LE, Scharfstein DO, Gary JL, Bosse MJ, Castillo RC, METRC (2017). Local Antibiotic Therapy to Reduce Infection After Operative Treatment of Fractures at High Risk of Infection: A Multicenter, Randomized, Controlled Trial (VANCO Study). J Orthop Trauma, 31 Suppl 1, S18-S24.
  18. OToole RV, Joshi M, Carlini AR, Sikorski RA, Dagal A, Murray CK, Weaver MJ, Paryavi E, Stall AC, Scharfstein DO, Agel J, Zadnik M, Bosse MJ, Castillo RC, METRC (2017). Supplemental Perioperative Oxygen to Reduce Surgical Site Infection After High-Energy Fracture Surgery (OXYGEN Study). J Orthop Trauma, 31 Suppl 1, S25-S31.
  19. Obremskey WT, Schmidt AH, OToole RV, DeSanto J, Morshed S, Tornetta P 3rd, Murray CK, Jones CB, Scharfstein DO, Taylor TJ, Carlini AR, Castillo RC, METRC (2017). A Prospective Randomized Trial to Assess Oral Versus Intravenous Antibiotics for the Treatment of Postoperative Wound Infection After Extremity Fractures (POvIV Study). J Orthop Trauma, 31 Suppl 1, S32-S38.
  20. Schmidt AH, Bosse MJ, Frey KP, OToole RV, Stinner DJ, Scharfstein DO, Zipunnikov V, MacKenzie EJ, METRC (2017). Predicting Acute Compartment Syndrome (PACS): The Role of Continuous Monitoring. J Orthop Trauma, 31 Suppl 1, S40-S47.
  21. Bosse MJ, Teague D, Reider L, Gary JL, Morshed S, Seymour RB, Toledano J, Cannada LK, Steverson B, Scharfstein DO, Luly J, MacKenzie EJ, METRC (2017). Outcomes After Severe Distal Tibia, Ankle, and/or Foot Trauma: Comparison of Limb Salvage Versus Transtibial Amputation (OUTLET). J Orthop Trauma, 31 Suppl 1, S48-S55.
  22. Hsu JR, Owens JG, DeSanto J, Fergason JR, Kuhn KM, Potter BK, Stinner DJ, Sheu RG, Waggoner SL, Wilken JM, Huang Y, Scharfstein DO, MacKenzie EJ, METRC (2017). Patient Response to an Integrated Orthotic and Rehabilitation Initiative for Traumatic Injuries: The PRIORITI-MTF Study. J Orthop Trauma, 31 Suppl 1, S56-S62.
  23. Bosse MJ, Morshed S, Reider L, Ertl W, Toledano J, Firoozabadi R, Seymour RB, Carroll E, Scharfstein DO, Steverson B, MacKenzie EJ, METRC (2017). Transtibial Amputation Outcomes Study (TAOS): Comparing Transtibial Amputation With and Without a Tibiofibular Synostosis (Ertl) Procedure. J Orthop Trauma, 31 Suppl 1, S63-S69.
  24. Wegener ST, Pollak AN, Frey KP, Hymes RA, Archer KR, Jones CB, Seymour RB, OToole RV, Castillo RC, Huang Y, Scharfstein DO, MacKenzie EJ, METRC (2017). The Trauma Collaborative Care Study (TCCS). J Orthop Trauma, 31 Suppl 1, S78-S87.
  25. Stinner DJ, Wenke JC, Ficke JR, Gordon W, Toledano J, Carlini AR, Scharfstein DO, MacKenzie EJ, Bosse MJ, Hsu JR, Major Extremity Trauma Research Consortium METRC (2017). Military and Civilian Collaboration: The Power of Numbers. Mil Med, 182(S1), 10-17.
  26. Manson TT, Reider L, OToole RV, Scharfstein DO, Tornetta P 3rd, Gary JL, Major Extremity Trauma Research Consortium METRC (2016). Variation in Treatment of Displaced Geriatric Acetabular Fractures Among 15 Level-I Trauma Centers. J Orthop Trauma, 30(9), 457-62.
  27. Wu Z, Frangakis CE, Louis TA, Scharfstein DO (2014). Estimation of treatment effects in matched-pair cluster randomized trials by calibrating covariate imbalance between clusters. Biometrics, 70(4), 1014-22.
  28. Kharrazi H, Wang C, Scharfstein D (2014). Prospective EHR-based clinical trials: the challenge of missing data. J Gen Intern Med, 29(7), 976-8.
  29. Hauschild A, Chen SC, Weichenthal M, Blum A, King HC, Goldsmith J, Scharfstein D, Gutkowicz-Krusin D (2014). To excise or not: impact of MelaFind on German dermatologists' decisions to biopsy atypical lesions. J Dtsch Dermatol Ges, 12(7), 606-14.
  30. Li T, Hutfless S, Scharfstein DO, Daniels MJ, Hogan JW, Little RJ, Roy JA, Law AH, Dickersin K (2013). Standards should be applied in the prevention and handling of missing data for patient-centered outcomes research: a systematic review and expert consensus. J Clin Epidemiol, 67(1), 15-32.
  31. Marsteller JA, Hsu YJ, Wen M, Wolff J, Frick K, Reider L, Scharfstein D, Boyd C, Leff B, Schwartz L, Karm L, Boult C (2013). Effects of Guided Care on providers' satisfaction with care: a three-year matched-pair cluster-randomized trial. Popul Health Manag, 16(5), 317-25.
  32. Paryavi E, Stall A, Gupta R, Scharfstein DO, Castillo RC, Zadnik M, Hui E, OToole RV (2013). Predictive model for surgical site infection risk after surgery for high-energy lower-extremity fractures: development of the risk of infection in orthopedic trauma surgery score. J Trauma Acute Care Surg, 74(6), 1521-7.
  33. Boult C, Leff B, Boyd CM, Wolff JL, Marsteller JA, Frick KD, Wegener S, Reider L, Frey K, Mroz TM, Karm L, Scharfstein DO (2013). A matched-pair cluster-randomized trial of guided care for high-risk older patients. J Gen Intern Med, 28(5), 612-21.
  34. Dattalo M, Giovannetti ER, Scharfstein D, Boult C, Wegener S, Wolff JL, Leff B, Frick KD, Reider L, Frey K, Noronha G, Boyd C (2012). Who participates in chronic disease self-management (CDSM) programs? Differences between participants and nonparticipants in a population of multimorbid older adults. Med Care, 50(12), 1071-5.
  35. Little RJ, DAgostino R, Cohen ML, Dickersin K, Emerson SS, Farrar JT, Frangakis C, Hogan JW, Molenberghs G, Murphy SA, Neaton JD, Rotnitzky A, Scharfstein D, Shih WJ, Siegel JP, Stern H (2012). The prevention and treatment of missing data in clinical trials. N Engl J Med, 367(14), 1355-60.
  36. Scharfstein DO, Hogan J, Herman A (2012). On the prevention and analysis of missing data in randomized clinical trials: the state of the art. J Bone Joint Surg Am, 94 Suppl 1, 80-4.
  37. Castillo RC, Scharfstein DO, MacKenzie EJ (2012). Observational studies in the era of randomized trials: finding the balance. J Bone Joint Surg Am, 94 Suppl 1, 112-7.
  38. Wang W, Scharfstein D, Wang C, Daniels M, Needham D, Brower R, the NHLBI ARDS Clinical Network (2011). Estimating the Causal Effect of Low Tidal Volume Ventilation on Survival in Patients with Acute Lung Injury. J R Stat Soc Ser C Appl Stat, 60(4), 475-496.
  39. Skolasky RL, Green AF, Scharfstein D, Boult C, Reider L, Wegener ST (2010). Psychometric properties of the patient activation measure among multimorbid older adults. Health Serv Res, 46(2), 457-78.
  40. Boult C, Reider L, Leff B, Frick KD, Boyd CM, Wolff JL, Frey K, Karm L, Wegener ST, Mroz T, Scharfstein DO (2011). The effect of guided care teams on the use of health services: results from a cluster-randomized controlled trial. Arch Intern Med, 171(5), 460-6.
  41. Reshef S, Fried L, Beauchamp N, Scharfstein D, Reshef D, Goodman S (2010). Diastolic blood pressure levels and ischemic stroke incidence in older adults with white matter lesions. J Gerontol A Biol Sci Med Sci, 66(1), 74-81.
  42. Bobb JF, Scharfstein DO, Daniels MJ, Collins FS, Kelada S (2014). Multiple imputation of missing phenotype data for QTL mapping. Stat Appl Genet Mol Biol, 10(1), Article 29.
  43. Wang C, Daniels MJ, Scharfstein DO, Land S (2011). A Bayesian Shrinkage Model for Incomplete Longitudinal Binary Data with Application to the Breast Cancer Prevention Trial. J Am Stat Assoc, 105(492), 1333-1346.
  44. Wolff JL, Giovannetti ER, Boyd CM, Reider L, Palmer S, Scharfstein D, Marsteller J, Wegener ST, Frey K, Leff B, Frick KD, Boult C (2009). Effects of guided care on family caregivers. Gerontologist, 50(4), 459-70.
  45. MacKenzie EJ, Weir S, Rivara FP, Jurkovich GJ, Nathens AB, Wang W, Scharfstein DO, Salkever DS (2010). The value of trauma center care. J Trauma, 69(1), 1-10.
  46. Marsteller JA, Hsu YJ, Reider L, Frey K, Wolff J, Boyd C, Leff B, Karm L, Scharfstein D, Boult C (2010). Physician satisfaction with chronic care processes: a cluster-randomized trial of guided care. Ann Fam Med, 8(4), 308-15.
  47. Varadhan R, Weiss CO, Segal JB, Wu AW, Scharfstein D, Boyd C (2010). Evaluating health outcomes in the presence of competing risks: a review of statistical methods and clinical applications. Med Care, 48(6 Suppl), S96-105.
  48. Boyd CM, Reider L, Frey K, Scharfstein D, Leff B, Wolff J, Groves C, Karm L, Wegener S, Marsteller J, Boult C (2009). The effects of guided care on the perceived quality of health care for multi-morbid older persons: 18-month outcomes from a cluster-randomized controlled trial. J Gen Intern Med, 25(3), 235-42.
  49. Joffe A, McNeely C, Colantuoni E, An MW, Wang W, Scharfstein D (2009). Evaluation of school-based smoking-cessation interventions for self-described adolescent smokers. Pediatrics, 124(2), e187-94.
  50. Leff B, Reider L, Frick KD, Scharfstein DO, Boyd CM, Frey K, Karm L, Boult C (2009). Guided care and the cost of complex healthcare: a preliminary report. Am J Manag Care, 15(8), 555-9.
  51. Wolff JL, Rand-Giovannetti E, Palmer S, Wegener S, Reider L, Frey K, Scharfstein D, Boult C (2009). Caregiving and chronic care: the guided care program for families and friends. J Gerontol A Biol Sci Med Sci, 64(7), 785-91.
  52. Egleston BL, Scharfstein DO, MacKenzie E (2008). On estimation of the survivor average causal effect in observational studies when important confounders are missing due to death. Biometrics, 65(2), 497-504.
  53. Dodd-O JM, Hristopoulos M, Scharfstein D, Brower R, Hassoun P, King LS, Becker P, Liu M, Wang W, Hassoun HT, Rabb H (2008). Interactive effects of mechanical ventilation and kidney health on lung function in an in vivo mouse model. Am J Physiol Lung Cell Mol Physiol, 296(1), L3-L11.
  54. Shardell M, Scharfstein DO, Vlahov D, Galai N (2008). Sensitivity analysis using elicited expert information for inference with coarsened data: illustration of censored discrete event times in the AIDS Link to Intravenous Experience (ALIVE) Study. Am J Epidemiol, 168(12), 1460-9.
  55. Shardell M, Scharfstein DO, Vlahov D, Galai N (2008). Inference for cumulative incidence functions with informatively coarsened discrete event-time data. Stat Med, 27(28), 5861-79.
  56. Brotman RM, Klebanoff MA, Nansel TR, Andrews WW, Schwebke JR, Zhang J, Yu KF, Zenilman JM, Scharfstein DO (2008). A longitudinal study of vaginal douching and bacterial vaginosis--a marginal structural modeling analysis. Am J Epidemiol, 168(2), 188-96.
  57. Brotman RM, Ghanem KG, Klebanoff MA, Taha TE, Scharfstein DO, Zenilman JM (2008). The effect of vaginal douching cessation on bacterial vaginosis: a pilot study. Am J Obstet Gynecol, 198(6), 628.e1-7.
  58. Scharfstein DO, Ryea JL, Caffo B (2007). Accounting for within-patient correlation in assessing relative sensitivity of an adjunctive diagnostic test: application to lung cancer. Stat Med, 27(12), 2110-26.
  59. Bozzette SA, Ake CF, Tam HK, Phippard A, Cohen D, Scharfstein DO, Louis TA (2008). Long-term survival and serious cardiovascular events in HIV-infected patients treated with highly active antiretroviral therapy. J Acquir Immune Defic Syndr, 47(3), 338-41.
  60. Rivara FP, Mackenzie EJ, Jurkovich GJ, Nathens AB, Wang J, Scharfstein DO (2008). Prevalence of pain in patients 1 year after major trauma. Arch Surg, 143(3), 282-7; discussion 288.
  61. Boult C, Reider L, Frey K, Leff B, Boyd CM, Wolff JL, Wegener S, Marsteller J, Karm L, Scharfstein D (2008). Early effects of "Guided Care" on the quality of health care for multimorbid older persons: a cluster-randomized controlled trial. J Gerontol A Biol Sci Med Sci, 63(3), 321-7.
  62. Mackenzie EJ, Rivara FP, Jurkovich GJ, Nathens AB, Egleston BL, Salkever DS, Frey KP, Scharfstein DO (2008). The impact of trauma-center care on functional outcomes following major lower-limb trauma. J Bone Joint Surg Am, 90(1), 101-9.
  63. Mackenzie EJ, Rivara FP, Jurkovich GJ, Nathens AB, Frey KP, Egleston BL, Salkever DS, Weir S, Scharfstein DO (2007). The National Study on Costs and Outcomes of Trauma. J Trauma, 63(6 Suppl), S54-67; discussion S81-6.
  64. Li X, Caffo B, Scharfstein D (2007). On the potential for illogic with logically defined outcomes. Biostatistics, 8(4), 800-4.
  65. Eaton WW, Kalaydjian A, Scharfstein DO, Mezuk B, Ding Y (2007). Prevalence and incidence of depressive disorder: the Baltimore ECA follow-up, 1981-2004. Acta Psychiatr Scand, 116(3), 182-8.
  66. Minkovitz CS, Strobino D, Mistry KB, Scharfstein DO, Grason H, Hou W, Ialongo N, Guyer B (2007). Healthy Steps for Young Children: sustained results at 5.5 years. Pediatrics, 120(3), e658-68.
  67. Egleston BL, Scharfstein DO, Freeman EE, West SK (2006). Causal inference for non-mortality outcomes in the presence of death. Biostatistics, 8(3), 526-45.
  68. Shardell M, Scharfstein DO, Bozzette SA (2006). Survival curve estimation for informatively coarsened discrete event-time data. Stat Med, 26(10), 2184-202.
  69. Scharfstein DO, Halloran ME, Chu H, Daniels MJ (2006). On estimation of vaccine efficacy using validation samples with selection bias. Biostatistics, 7(4), 615-29.
  70. Nathens AB, Rivara FP, MacKenzie EJ, Maier RV, Wang J, Egleston B, Scharfstein DO, Jurkovich GJ (2006). The impact of an intensivist-model ICU on trauma-related mortality. Ann Surg, 244(4), 545-54.
  71. Hogan JW, Scharfstein DO (2006). Estimating causal effects from multiple cycle data in studies of in vitro fertilization. Stat Methods Med Res, 15(2), 195-209.
  72. Needham DM, Dennison CR, Dowdy DW, Mendez-Tellez PA, Ciesla N, Desai SV, Sevransky J, Shanholtz C, Scharfstein D, Herridge MS, Pronovost PJ (2005). Study protocol: The Improving Care of Acute Lung Injury Patients (ICAP) study. Crit Care, 10(1), R9.
  73. MacKenzie EJ, Rivara FP, Jurkovich GJ, Nathens AB, Frey KP, Egleston BL, Salkever DS, Scharfstein DO (2006). A national evaluation of the effect of trauma-center care on mortality. N Engl J Med, 354(4), 366-78.
  74. Epstein JI, Sanderson H, Carter HB, Scharfstein DO (2004). Utility of saturation biopsy to predict insignificant cancer at radical prostatectomy. Urology, 66(2), 356-60.
  75. Minkovitz CS, Strobino D, Scharfstein D, Hou W, Miller T, Mistry KB, Swartz K (2005). Maternal depressive symptoms and children's receipt of health care in the first 3 years of life. Pediatrics, 115(2), 306-14.
  76. Cotter DJ, Stefanik K, Zhang Y, Thamer M, Scharfstein D, Kaufman J (2004). Hematocrit was not validated as a surrogate end point for survival among epoetin-treated hemodialysis patients. J Clin Epidemiol, 57(10), 1086-95.
  77. McLearn KT, Strobino DM, Hughart N, Minkovitz CS, Scharfstein D, Marks E, Guyer B (2004). Developmental services in primary care for low-income children: clinicians' perceptions of the Healthy Steps for Young Children program. J Urban Health, 81(2), 206-21.
  78. Scharfstein DO, Manski CF, Anthony JC (2004). On the construction of bounds in prospective studies with missing ordinal outcomes: application to the good behavior game trial. Biometrics, 60(1), 154-64.
  79. Minkovitz CS, Hughart N, Strobino D, Scharfstein D, Grason H, Hou W, Miller T, Bishai D, Augustyn M, McLearn KT, Guyer B (2003). A practice-based intervention to enhance quality of care in the first 3 years of life: the Healthy Steps for Young Children Program. JAMA, 290(23), 3081-91.
  80. Minkovitz CS, Strobino D, Hughart N, Scharfstein D, Hou W, Miller T, Bishai D, Guyer B (2003). Developmental specialists in pediatric practices: perspectives of clinicians and staff. Ambul Pediatr, 3(6), 295-303.
  81. Scharfstein DO, Daniels MJ, Robins JM (2003). Incorporating prior beliefs about selection bias into the analysis of randomized trials with missing outcomes. Biostatistics, 4(4), 495-512.
  82. Scharfstein DO, Irizarry RA (2003). Generalized additive selection models for the analysis of studies with potentially nonignorable missing outcome data. Biometrics, 59(3), 601-13.
  83. Scharfstein DO, Liang KY, Eaton W, Chen LS (2003). The quadratic cumulative odds regression model for scored ordinal outcomes: application to alcohol dependence. Biostatistics, 2(4), 473-83.
  84. Scharfstein D, Robins JM, Eddings W, Rotnitzky A (2001). Inference in randomized studies with informative censoring and discrete time-to-event endpoints. Biometrics, 57(2), 404-13.
  85. Minkovitz C, Strobino D, Hughart N, Scharfstein D, Guyer B, Healthy Steps Evaluation Team (2001). Early effects of the healthy steps for young children program. Arch Pediatr Adolesc Med, 155(4), 470-9.
  86. Rotnitzky A, Scharfstein D, Su TL, Robins J (2001). Methods for conducting sensitivity analysis of trials with potentially nonignorable competing causes of censoring. Biometrics, 57(1), 103-13.
  87. Guyer B, Hughart N, Strobino D, Jones A, Scharfstein D (2000). Assessing the impact of pediatric-based development services on infants, families, and clinicians: challenges to evaluating the Health Steps Program. Pediatrics, 105(3), E33.
  88. Scharfstein DO, Tsiatis AA (1998). The use of simulation and bootstrap in information-based group sequential studies. Stat Med, 17(1), 75-87.
  89. Scharfstein DO, Tsiatis AA, Gilbert PB (1999). Semiparametric efficient estimation in the generalized odds-rate class of regression models for right-censored time-to-event data. Lifetime Data Anal, 4(4), 355-91.
  90. Scharfstein DO, Williams PL (1994). Design of developmental toxicity studies for assessing joint effects of dose and duration. Risk Anal, 14(6), 1057-71.
  91. Catalano P, Ryan L, Scharfstein D (1994). Modeling fetal death and malformation in developmental toxicity studies. Risk Anal, 14(4), 629-37.
  92. Catalano PJ, Scharfstein DO, Ryan LM, Kimmel CA, Kimmel GL (1993). Statistical model for fetal death, fetal weight, and malformation in developmental toxicity studies. Teratology, 47(4), 281-90.