Song Zhang

Summary

Affiliation: University of Texas Southwestern Medical Center
Country: USA

Publications

  1. pmc Sample size calculation for time-averaged differences in the presence of missing data
    Song Zhang
    Department of Clinical Sciences, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390 9066, United States
    Contemp Clin Trials 33:550-6. 2012
  2. pmc GO-Bayes: Gene Ontology-based overrepresentation analysis using a Bayesian approach
    Song Zhang
    Department of Clinical Sciences, U T Southwestern Medical Center, 5323 Harry Hines Boulevard Dallas, TX 75390 9072, USA
    Bioinformatics 26:905-11. 2010
  3. pmc A close examination of double filtering with fold change and T test in microarray analysis
    Song Zhang
    Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
    BMC Bioinformatics 10:402. 2009
  4. pmc Calculating sample size in trials using historical controls
    Song Zhang
    Department of Clinical Sciences, UT Southwestern Medical Center, Dallas, TX, USA
    Clin Trials 7:343-53. 2010
  5. pmc A Bayesian semiparametric survival model with longitudinal markers
    Song Zhang
    Department of Clinical Sciences, Division of Biostatistics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
    Biometrics 66:435-43. 2010
  6. doi request reprint Aesthetic subunit of the breast: an analysis of women's preference and clinical implications
    Steven H Bailey
    Department of Plastic Surgery, University of Texas Southwestern Medical Center, 1801 Inwood Road, Dallas, TX 75390, USA
    Ann Plast Surg 68:240-5. 2012
  7. ncbi request reprint National trends in incidence rates of hospitalization for stroke in children with sickle cell disease
    Timothy L McCavit
    Division of Pediatric Hematology Oncology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390 9063, USA
    Pediatr Blood Cancer 60:823-7. 2013
  8. pmc Allocating scarce resources in real-time to reduce heart failure readmissions: a prospective, controlled study
    Ruben Amarasingham
    Parkland Center for Clinical Innovation, Dallas, Texas, USA
    BMJ Qual Saf 22:998-1005. 2013
  9. pmc Predicting out of intensive care unit cardiopulmonary arrest or death using electronic medical record data
    Carlos A Alvarez
    School of Pharmacy Department of Pharmacy Practice, Texas Tech University Health Sciences Center, 5920 Forest Park Rd, Dallas, TX 75235, USA
    BMC Med Inform Decis Mak 13:28. 2013
  10. pmc Bayesian optimal discovery procedure for simultaneous significance testing
    Jing Cao
    Department of Statistical Science, Southern Methodist University, Dallas, Texas, USA
    BMC Bioinformatics 10:5. 2009

Detail Information

Publications25

  1. pmc Sample size calculation for time-averaged differences in the presence of missing data
    Song Zhang
    Department of Clinical Sciences, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390 9066, United States
    Contemp Clin Trials 33:550-6. 2012
    ..The proposed sample size formula is illustrated using a clinical trial example...
  2. pmc GO-Bayes: Gene Ontology-based overrepresentation analysis using a Bayesian approach
    Song Zhang
    Department of Clinical Sciences, U T Southwestern Medical Center, 5323 Harry Hines Boulevard Dallas, TX 75390 9072, USA
    Bioinformatics 26:905-11. 2010
    ..However, the standard ORA, which is based on the hypergeometric test, analyzes each GO term in isolation and does not take into account the dependence structure of the GO-term hierarchy...
  3. pmc A close examination of double filtering with fold change and T test in microarray analysis
    Song Zhang
    Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
    BMC Bioinformatics 10:402. 2009
    ..Due to its simplicity, the double filtering procedure has been popular with applied researchers despite the development of more sophisticated methods...
  4. pmc Calculating sample size in trials using historical controls
    Song Zhang
    Department of Clinical Sciences, UT Southwestern Medical Center, Dallas, TX, USA
    Clin Trials 7:343-53. 2010
    ..Many researchers have pointed out that the Makuch-Simon approach does not preserve the nominal power and type I error when considering the uncertainty in the true historical control treatment effect...
  5. pmc A Bayesian semiparametric survival model with longitudinal markers
    Song Zhang
    Department of Clinical Sciences, Division of Biostatistics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
    Biometrics 66:435-43. 2010
    ..e., we implicitly model the desired regression by modeling the reverse conditional distribution...
  6. doi request reprint Aesthetic subunit of the breast: an analysis of women's preference and clinical implications
    Steven H Bailey
    Department of Plastic Surgery, University of Texas Southwestern Medical Center, 1801 Inwood Road, Dallas, TX 75390, USA
    Ann Plast Surg 68:240-5. 2012
    ..Patient outcomes following surgery can be enhanced by restoring volume and minimizing scars in this upper medial subunit of the breast...
  7. ncbi request reprint National trends in incidence rates of hospitalization for stroke in children with sickle cell disease
    Timothy L McCavit
    Division of Pediatric Hematology Oncology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390 9063, USA
    Pediatr Blood Cancer 60:823-7. 2013
    ..Therefore, we aimed to generate national incidence rates of hospitalization for stroke in children with sickle cell disease (SCD) before and after publication of the Stroke Prevention Trial in Sickle Cell Anemia (STOP trial) in 1998...
  8. pmc Allocating scarce resources in real-time to reduce heart failure readmissions: a prospective, controlled study
    Ruben Amarasingham
    Parkland Center for Clinical Innovation, Dallas, Texas, USA
    BMJ Qual Saf 22:998-1005. 2013
    ..To test a multidisciplinary approach to reduce heart failure (HF) readmissions that tailors the intensity of care transition intervention to the risk of the patient using a suite of electronic medical record (EMR)-enabled programmes...
  9. pmc Predicting out of intensive care unit cardiopulmonary arrest or death using electronic medical record data
    Carlos A Alvarez
    School of Pharmacy Department of Pharmacy Practice, Texas Tech University Health Sciences Center, 5920 Forest Park Rd, Dallas, TX 75235, USA
    BMC Med Inform Decis Mak 13:28. 2013
    ....
  10. pmc Bayesian optimal discovery procedure for simultaneous significance testing
    Jing Cao
    Department of Statistical Science, Southern Methodist University, Dallas, Texas, USA
    BMC Bioinformatics 10:5. 2009
    ..Several current approaches demonstrate that test statistics with shrinking variance estimates have more power over the traditional t statistic...
  11. pmc Effects of correlation and missing data on sample size estimation in longitudinal clinical trials
    Song Zhang
    Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
    Pharm Stat 9:2-9. 2010
    ..A simulation study is conducted to investigate the performance of GEE sample size formula with small sample sizes, damped exponential family of correlation structure and non-ignorable missing data...
  12. pmc Sequential intrarectal diazepam and intravenous levetiracetam in treating acute repetitive and prolonged seizures
    Pradeep N Modur
    Department of Neurology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
    Epilepsia 51:1078-82. 2010
    ..In addition, we speculate that a more reliable onset of action after IVL treatment results in rapid seizure control and fewer ER transfers, despite seizure recurrence...
  13. pmc Noninvasive quantification of pancreatic fat in humans
    Ildiko Lingvay
    Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
    J Clin Endocrinol Metab 94:4070-6. 2009
    ....
  14. pmc Pegylated interferon and ribavirin promote early evolution of nonstructural 5A protein in individuals with hepatitis C who demonstrate a response to treatment
    Mamta K Jain
    Department of Internal Medicine, University of Texas Southwestern Medical Center, 4323 Harry Hines Boulevard, Dallas, TX 75390, USA
    J Infect Dis 200:866-76. 2009
    ..We evaluated the influence of HCV therapy on changes in the nonstructural 5A (NS5A) protein...
  15. pmc Insulin-based versus triple oral therapy for newly diagnosed type 2 diabetes: which is better?
    Ildiko Lingvay
    Department of Internal Medicine, Division of Endocrinology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
    Diabetes Care 32:1789-95. 2009
    ..Early use of insulin after diagnosis of type 2 diabetes is met with resistance because of associated weight gain, hypoglycemia, and fear of decreased compliance and quality of life (QoL)...
  16. pmc Ictal high-frequency oscillations in neocortical epilepsy: implications for seizure localization and surgical resection
    Pradeep N Modur
    Department of Neurology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
    Epilepsia 52:1792-801. 2011
    ..To investigate the characteristics of intracranial ictal high-frequency oscillations (HFOs)...
  17. ncbi request reprint CD4 counts and mortality in virologically suppressed US veterans
    Henning Drechsler
    North Texas VA Health Care Center, Dallas, TX, USA
    J Int Assoc Provid AIDS Care 13:120-6. 2014
    ..4, CI: 1.13-1.73). Our results support early HAART initiation as advocated by the current US treatment guidelines for HIV infection. ..
  18. doi request reprint Sample size calculation for studies comparing binary outcomes using historical controls
    Song Zhang
    Department of Clinical Sciences, UT Southwestern Medical Center, Dallas, TX 75390, USA
    Biom J 55:190-202. 2013
    ..We also show that the controlling percentiles can be used to describe the joint behavior of the power and type I error. It provides a new perspective on the assessment of HCTs...
  19. ncbi request reprint Hepatitis C co-infection and severity of liver disease as risk factors for osteoporotic fractures among HIV-infected patients
    Naim M Maalouf
    University of Texas Southwestern Medical Center, Dallas, TX, USA
    J Bone Miner Res 28:2577-83. 2013
    ..002-1.014; p = 0.015). In conclusion, among HIV-infected patients, severity of liver disease partly explains the HCV-associated increased risk of osteoporotic fractures. Other determinants of this increased risk remain to be defined...
  20. pmc How many measurements for time-averaged differences in repeated measurement studies?
    Song Zhang
    Department of Clinical Sciences, UT Southwestern Medical Center, Dallas, TX 75390, USA
    Contemp Clin Trials 32:412-7. 2011
    ..Finally, we show that by introducing measurement error into the AR(1) model, the counterintuitive behavior disappears. That is, additional measurements per subject result in reduced sample sizes...
  21. doi request reprint An automated model to identify heart failure patients at risk for 30-day readmission or death using electronic medical record data
    Ruben Amarasingham
    Center for Clinical Innovation, Parkland Health and Hospital System, Dallas, TX 75235, USA
    Med Care 48:981-8. 2010
    ..A real-time electronic predictive model that identifies hospitalized heart failure (HF) patients at high risk for readmission or death may be valuable to clinicians and hospitals who care for these patients...
  22. doi request reprint Age does not impact risk for urethroplasty complications after tubularized incised plate repair of hypospadias in prepubertal boys
    Nicol Corbin Bush
    Division of Pediatric Urology, The University of Texas Southwestern Medical Center and, Children s Medical Center, 2350 Stemmons Freeway Suite F4300, Mail Stop F4 04, Dallas, TX 75207, USA
    J Pediatr Urol 9:252-6. 2013
    ..Reports indicate complications may increase when repair is delayed past 6-12 months of age. We questioned if age was an independent risk for urethroplasty complications (UC)...
  23. doi request reprint Hospitalization for invasive pneumococcal disease in a national sample of children with sickle cell disease before and after PCV7 licensure
    Timothy L McCavit
    University of Texas Southwestern Medical Center, Dallas, TX, USA
    Pediatr Blood Cancer 58:945-9. 2012
    ..To estimate national hospitalization rates for invasive pneumococcal disease (IPD) in children with sickle cell disease (SCD) before and after the 2000 licensure of the heptavalent pneumococcal conjugate vaccine (PCV7)...
  24. doi request reprint Breast reconstruction with the latissimus dorsi flap: women's preference for scar location
    Steven Bailey
    Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75390 9132, USA
    Plast Reconstr Surg 126:358-65. 2010
    ....
  25. pmc Predicting risk of perioperative death and stroke after carotid endarterectomy in asymptomatic patients: derivation and validation of a clinical risk score
    Linda Calvillo-King
    Division of General Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390 8889, USA
    Stroke 41:2786-94. 2010
    ..We developed and validated a multivariate model of risk of death or stroke within 30 days of CEA for asymptomatic disease and a related clinical prediction rule...