Abdus S Wahed

Summary

Affiliation: University of Pittsburgh
Country: USA

Publications

  1. pmc A new generalization of Weibull distribution with application to a breast cancer data set
    Abdus S Wahed
    Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
    Stat Med 28:2077-94. 2009
  2. pmc Associations between serum lipids and hepatitis C antiviral treatment efficacy
    Darmendra Ramcharran
    Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
    Hepatology 52:854-63. 2010
  3. pmc Monitoring Organ Donors to Improve Transplantation Results (MOnIToR) trial methodology
    Ali Al-Khafaji
    Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
    Crit Care Resusc 15:234-40. 2013
  4. pmc Host genetics, steatosis and insulin resistance among African Americans and Caucasian Americans with hepatitis C virus genotype-1 infection
    A Danielle Iuliano
    Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
    Intervirology 52:49-56. 2009
  5. doi request reprint Weighted log-rank statistic to compare shared-path adaptive treatment strategies
    Kelley M Kidwell
    Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA
    Biostatistics 14:299-312. 2013
  6. doi request reprint Sex differences in deceased donor organ transplantation rates in the United States
    Raghavan Murugan
    The CRISMA Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
    Transplantation 92:1278-84. 2011
  7. doi request reprint Up-front versus sequential randomizations for inference on adaptive treatment strategies
    Jin H Ko
    Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Stat Med 31:812-30. 2012
  8. ncbi request reprint Optimal estimator for the survival distribution and related quantities for treatment policies in two-stage randomization designs in clinical trials
    Abdus S Wahed
    Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania 15261, USA
    Biometrics 60:124-33. 2004
  9. doi request reprint Sample size for two-stage studies with maintenance therapy
    Wentao Feng
    Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15261, USA
    Stat Med 28:2028-41. 2009
  10. pmc Polymorphism in the human major histocompatibility complex and early viral decline during treatment of chronic hepatitis C
    Leland J Yee
    Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania 15261, USA
    Antimicrob Agents Chemother 53:615-21. 2009

Collaborators

Detail Information

Publications12

  1. pmc A new generalization of Weibull distribution with application to a breast cancer data set
    Abdus S Wahed
    Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
    Stat Med 28:2077-94. 2009
    ..In terms of statistical significance of the treatment effect and model adequacy, all generalized models lead to similar conclusions, suggesting that the beta-Weibull family is a reasonable candidate for modeling survival data...
  2. pmc Associations between serum lipids and hepatitis C antiviral treatment efficacy
    Darmendra Ramcharran
    Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
    Hepatology 52:854-63. 2010
    ..Lipid measures did not contribute significantly to an explanation of the racial difference in SVR...
  3. pmc Monitoring Organ Donors to Improve Transplantation Results (MOnIToR) trial methodology
    Ali Al-Khafaji
    Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
    Crit Care Resusc 15:234-40. 2013
    ..We describe the study design and discuss unique aspects of doing research in this population...
  4. pmc Host genetics, steatosis and insulin resistance among African Americans and Caucasian Americans with hepatitis C virus genotype-1 infection
    A Danielle Iuliano
    Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
    Intervirology 52:49-56. 2009
    ..These results could imply that some IL10,LEPR and TGF-beta1 polymorphisms may modify an association between steatosis and IR...
  5. doi request reprint Weighted log-rank statistic to compare shared-path adaptive treatment strategies
    Kelley M Kidwell
    Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA
    Biostatistics 14:299-312. 2013
    ..Large sample properties of the statistic are derived and the type I error rate and power of the test are compared with the standard log-rank test through simulation...
  6. doi request reprint Sex differences in deceased donor organ transplantation rates in the United States
    Raghavan Murugan
    The CRISMA Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
    Transplantation 92:1278-84. 2011
    ..Understanding sex differences in transplantation will help to design interventions to mitigate disparities in transplantation...
  7. doi request reprint Up-front versus sequential randomizations for inference on adaptive treatment strategies
    Jin H Ko
    Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Stat Med 31:812-30. 2012
    ..The analytical and simulation results indicate that, when properly analyzed, sequentially randomized trials are more efficient and powerful than up-front randomized trials...
  8. ncbi request reprint Optimal estimator for the survival distribution and related quantities for treatment policies in two-stage randomization designs in clinical trials
    Abdus S Wahed
    Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania 15261, USA
    Biometrics 60:124-33. 2004
    ..Large sample properties of these estimators are derived and comparisons with other estimators are made using simulation. We apply our estimators to a leukemia clinical trial data set that motivated this study...
  9. doi request reprint Sample size for two-stage studies with maintenance therapy
    Wentao Feng
    Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15261, USA
    Stat Med 28:2028-41. 2009
    ..Simulation study shows strong evidence that the proposed sample size formula guarantees desired power, regardless of the true distributions of survival times...
  10. pmc Polymorphism in the human major histocompatibility complex and early viral decline during treatment of chronic hepatitis C
    Leland J Yee
    Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania 15261, USA
    Antimicrob Agents Chemother 53:615-21. 2009
    ..018), in CA carriers for Cw*03 (2.99; P = 0.046), and in CA noncarriers for DQA1*04 (2.66; P = 0.018) or DQB1*0402 (2.65; P = 0.018). MHC alleles are associated with the viral decline during the first 28 days of peginterferon therapy...
  11. pmc Preload responsiveness is associated with increased interleukin-6 and lower organ yield from brain-dead donors
    Raghavan Murugan
    CRISMA Laboratory, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
    Crit Care Med 37:2387-93. 2009
    ..Using functional hemodynamic monitoring in brain-dead organ donors, we test the hypothesis that donor preload (fluid) responsiveness is associated with increased inflammatory response and lower organ yield for transplantation...
  12. doi request reprint Increased plasma interleukin-6 in donors is associated with lower recipient hospital-free survival after cadaveric organ transplantation
    Raghavan Murugan
    CRISMA Laboratory, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
    Crit Care Med 36:1810-6. 2008
    ..We test the hypothesis that increased inflammatory response is associated with fewer organs transplanted and decreased recipient survival...