Xu Zhang

Summary

Affiliation: Georgia State University
Country: USA

Publications

  1. pmc Additive and multiplicative hazards modeling for recurrent event data analysis
    Hyun J Lim
    Department of Community Health and Epidemiology College of Medicine, University of Saskatchewan, Saskatoon, Canada
    BMC Med Res Methodol 11:101. 2011
  2. pmc Methods of competing risks analysis of end-stage renal disease and mortality among people with diabetes
    Hyun J Lim
    Department of Community Health and Epidemiology College of Medicine, University of Saskatchewan 107 Wiggins Road Saskatoon, SK S7N 5E5, Canada
    BMC Med Res Methodol 10:97. 2010
  3. pmc A proportional hazards regression model for the subdistribution with right-censored and left-truncated competing risks data
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Stat Med 30:1933-51. 2011
  4. ncbi request reprint A SAS macro for estimation of direct adjusted survival curves based on a stratified Cox regression model
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Comput Methods Programs Biomed 88:95-101. 2007
  5. doi request reprint Serum 25-hydroxyvitamin D concentrations are associated with prevalence of metabolic syndrome and various cardiometabolic risk factors in US children and adolescents based on assay-adjusted serum 25-hydroxyvitamin D data from NHANES 2001-2006
    Vijay Ganji
    Division of Nutrition, School of Health Professions, College of Health and Human Sciences, Georgia State University, Atlanta, GA, USA
    Am J Clin Nutr 94:225-33. 2011
  6. ncbi request reprint Chemical composition of inks of diverse marine molluscs suggests convergent chemical defenses
    Charles D Derby
    Department of Biology, Brains and Behavior Program and Center for Behavioral Neuroscience, Georgia State University, Atlanta, Georgia 30302 4010, USA
    J Chem Ecol 33:1105-13. 2007
  7. pmc SAS macros for estimation of direct adjusted cumulative incidence curves under proportional subdistribution hazards models
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Comput Methods Programs Biomed 101:87-93. 2011
  8. doi request reprint T-cell-replete HLA-haploidentical hematopoietic transplantation for hematologic malignancies using post-transplantation cyclophosphamide results in outcomes equivalent to those of contemporaneous HLA-matched related and unrelated donor transplantation
    Asad Bashey
    Northside Hospital, Atlanta, GA 30342, USA
    J Clin Oncol 31:1310-6. 2013
  9. doi request reprint A SAS macro for direct adjusted survival curves based on Aalen's additive model
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Comput Methods Programs Biomed 108:310-7. 2012
  10. ncbi request reprint Inhibitory effects of vegetable and fruit ferment liquid on tumor growth in Hepatoma-22 inoculation model
    Ming Lu
    Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, China 210029
    Asia Pac J Clin Nutr 16:443-6. 2007

Collaborators

Detail Information

Publications14

  1. pmc Additive and multiplicative hazards modeling for recurrent event data analysis
    Hyun J Lim
    Department of Community Health and Epidemiology College of Medicine, University of Saskatchewan, Saskatoon, Canada
    BMC Med Res Methodol 11:101. 2011
    ..Multiplicative and additive hazards models provide the two principal frameworks for studying the association between risk factors and recurrent event durations for the analysis of multivariate failure time data...
  2. pmc Methods of competing risks analysis of end-stage renal disease and mortality among people with diabetes
    Hyun J Lim
    Department of Community Health and Epidemiology College of Medicine, University of Saskatchewan 107 Wiggins Road Saskatoon, SK S7N 5E5, Canada
    BMC Med Res Methodol 10:97. 2010
    ....
  3. pmc A proportional hazards regression model for the subdistribution with right-censored and left-truncated competing risks data
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Stat Med 30:1933-51. 2011
    ..To illustrate the application of the new method, we analyze the failure time data for children with acute leukemia. In this example, the failure times for children who had bone marrow transplants were left truncated...
  4. ncbi request reprint A SAS macro for estimation of direct adjusted survival curves based on a stratified Cox regression model
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Comput Methods Programs Biomed 88:95-101. 2007
    ..We have written a SAS macro to estimate and compare the direct adjusted survival curves. We illustrate the SAS macro through the examples analyzing stem cell transplant data and Ewing's sarcoma data...
  5. doi request reprint Serum 25-hydroxyvitamin D concentrations are associated with prevalence of metabolic syndrome and various cardiometabolic risk factors in US children and adolescents based on assay-adjusted serum 25-hydroxyvitamin D data from NHANES 2001-2006
    Vijay Ganji
    Division of Nutrition, School of Health Professions, College of Health and Human Sciences, Georgia State University, Atlanta, GA, USA
    Am J Clin Nutr 94:225-33. 2011
    ..Moreover, associations between serum 25(OH)D and metabolic syndrome (MetSyn), insulin resistance (IR), and inflammation are unclear in children...
  6. ncbi request reprint Chemical composition of inks of diverse marine molluscs suggests convergent chemical defenses
    Charles D Derby
    Department of Biology, Brains and Behavior Program and Center for Behavioral Neuroscience, Georgia State University, Atlanta, Georgia 30302 4010, USA
    J Chem Ecol 33:1105-13. 2007
    ..Our chemical analysis supports the hypothesis that inking molluscs have the potential to use sensory disruption and/or phagomimicry as a chemical defense...
  7. pmc SAS macros for estimation of direct adjusted cumulative incidence curves under proportional subdistribution hazards models
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Comput Methods Programs Biomed 101:87-93. 2011
    ..Based on the macros' output, one can assess treatment effects at predetermined time points. A real bone marrow transplant data example illustrates the practical utility of the SAS macros...
  8. doi request reprint T-cell-replete HLA-haploidentical hematopoietic transplantation for hematologic malignancies using post-transplantation cyclophosphamide results in outcomes equivalent to those of contemporaneous HLA-matched related and unrelated donor transplantation
    Asad Bashey
    Northside Hospital, Atlanta, GA 30342, USA
    J Clin Oncol 31:1310-6. 2013
    ..We compared outcomes of alloHCT using haploidentical donors with those of transplantation using conventional HLA-matched sibling donors (MRDs) and HLA-matched unrelated donors (MUDs)...
  9. doi request reprint A SAS macro for direct adjusted survival curves based on Aalen's additive model
    Xu Zhang
    Department of Mathematics and Statistics, Georgia State University, Atlanta, GA 30303, USA
    Comput Methods Programs Biomed 108:310-7. 2012
    ..We developed a SAS macro that calculates the direct adjusted survival estimates and the standard errors, based on Aalen's model. In this paper, we give two examples to explain the syntax for using the macro...
  10. ncbi request reprint Inhibitory effects of vegetable and fruit ferment liquid on tumor growth in Hepatoma-22 inoculation model
    Ming Lu
    Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, China 210029
    Asia Pac J Clin Nutr 16:443-6. 2007
    ..05). This study concludes that VFFL possesses anti-tumor properties, which it exhibits by inducing apoptosis and prolonging life in H22 tumor-bearing mice...
  11. pmc Relationship between number of breast cancer operations performed and 5-year survival after treatment for early-stage breast cancer
    Mary Ann Gilligan
    Department of Medicine and Health Policy Institute, Medical College of Wisconsin, Milwaukee 53226, USA
    Am J Public Health 97:539-44. 2007
    ....
  12. ncbi request reprint [Absorption and distribution of nitrogen from 15N labelled urea applied at core-hardening stage in winter jujube]
    Dengchao Zhao
    College of Horticulture Science and Engineering, Shandong Agricultural University, Tai an, China
    Ying Yong Sheng Tai Xue Bao 17:27-30. 2006
    ..The N reserve distributed preferentially in contiguity organs, and the distribution center changed with the growth and development of winter jujube in next spring...
  13. ncbi request reprint Effect of dl-homocysteic acid on W/O microemulsions of potassium naphthenate/1-octanol-n-heptane
    Xu Zhang
    The State Key Laboratory of Rare Earth Materials Chemistry and Applications, Department of Chemical Biology, College of Chemistry, Peking University, Beijing 100871, China
    J Colloid Interface Sci 283:231-7. 2005
    ..3) The microstructure of the solubilized water remains unchanged, except that the polarity of the interface is affected. (4) The transition point is reduced to lower water content. A possible mechanism is proposed...
  14. ncbi request reprint [Molecular biological study on the action mechanism of rice allelochemicals against weeds]
    Zhenghao Xu
    Key Laboratory for Rice Biology, Ministry of Agriculture, China National Rice Research Institute, Hangzhou 310006, China
    Ying Yong Sheng Tai Xue Bao 14:829-33. 2003
    ..It might be the important research work to locate the QTLs accurately and to clone the allelopathic genes with the method of marker-assisted selection and the near isogenic lines...