Selection Bias

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  Subject Areas on Research

  • A Bayesian approach on sample size calculation for comparing means. 
  • A Bayesian missing data framework for generalized multiple outcome mixed treatment comparisons. 
  • Accounting for nonignorable verification bias in assessment of diagnostic tests. 
  • Adenoid cystic carcinoma of the paranasal sinuses. 
  • An adjusted two one-sided t-test for the assessment of bioequivalence with multiple doses. 
  • An introduction to a Bayesian method for meta-analysis: The confidence profile method. 
  • Analysis of the impact of early surgery on in-hospital mortality of native valve endocarditis: use of propensity score and instrumental variable methods to adjust for treatment-selection bias. 
  • Assessing the impact of total quality management and organizational culture on multiple outcomes of care for coronary artery bypass graft surgery patients. 
  • Balancing Contamination and Referral Bias in a Randomized Clinical Trial: An Application of Pseudo-Cluster Randomization. 
  • Benefit or bias? The role of surgery to remove the primary tumor in patients with metastatic breast cancer. 
  • Body Mass Index Is Prognostic in Metastatic Colorectal Cancer: Pooled Analysis of Patients From First-Line Clinical Trials in the ARCAD Database. 
  • Clinical characteristics and referral pattern of patients with left ventricular dysfunction and significant coronary artery disease undergoing radionuclide imaging. 
  • Clinical characteristics and referral pattern of patients with left ventricular dysfunction and significant coronary artery disease undergoing radionuclide imaging. 
  • Controlling for Informed Presence Bias Due to the Number of Health Encounters in an Electronic Health Record. 
  • Depression and medical illness in late life: report of a symposium. 
  • Detecting association in a case-control study while correcting for population stratification. 
  • Diagnosis-specific prognostic factors, indexes, and treatment outcomes for patients with newly diagnosed brain metastases: a multi-institutional analysis of 4,259 patients. 
  • Differential survival with Alzheimer disease. 
  • Eliminating bias in randomized controlled trials: importance of allocation concealment and masking. 
  • Exposure assessment and gender differences. 
  • Illustrating bias due to conditioning on a collider. 
  • Imaging biomarker roadmap for cancer studies. 
  • Integrating multiple data sources (MUDS) for meta-analysis to improve patient-centered outcomes research: a protocol. 
  • Internet communities for recruitment of cancer patients into an Internet survey: a discussion paper. 
  • Interpreting negative results from an underpowered clinical trial: warts and all. 
  • Is life expectancy really falling for groups of low socio-economic status? Lagged selection bias and artefactual trends in mortality. 
  • Is there sex bias in the management of coronary artery disease? 
  • Issues in an Internet survey among midlife Asian women. 
  • More on treated incidence data. 
  • Myocardial viability in ischemic left ventricular dysfunction. 
  • Non-surgical management of stress urinary incontinence: ambulatory treatments for leakage associated with stress (ATLAS) trial. 
  • Omission of bupropion as a recommended treatment for PTSD. 
  • Optimal timing of coronary invasive strategy in non-ST-segment elevation acute coronary syndromes: a systematic review and meta-analysis. 
  • Possible incremental benefits of specialized rehabilitation bed units among veterans after lower extremity amputation. 
  • Potential selection bias in a community-based study of PSA levels in African-American men. 
  • Prevalence, characteristics, and predictors of early termination of cardiovascular clinical trials due to low recruitment: insights from the ClinicalTrials.gov registry. 
  • Propensity score interval matching: using bootstrap confidence intervals for accommodating estimation errors of propensity scores. 
  • Psychodynamic psychotherapy for PTSD. 
  • Quota sampling in internet research: practical issues. 
  • Randomization by cluster. 
  • Re: Adaptive therapy for androgen-independent prostate cancer: a randomized selection trial of four regimens. 
  • Recruitment of oncology nurses for Internet research: issues and future directions. 
  • Recruitment of research participants through the Internet. 
  • Religious service attendance and major depression: a case of reverse causality? 
  • Restricted elimination diet for ADHD. 
  • Sampling factors influencing accuracy of sperm kinematic analysis. 
  • Selection bias, phase II trials, and the FDA accelerated approval process. 
  • Selection bias, survival, and brachytherapy for glioma. 
  • Stereotactic body radiotherapy for oligometastatic breast cancer: a new standard of care, or a medical reversal in waiting? 
  • Surgical therapy for coronary disease: randomized and observational studies. 
  • Survey mode effects on valuation of environmental goods. 
  • The exclusion of women from clinical trials of thrombolytic therapy: implications for developing the thrombolytic predictive instrument database. 
  • The healthy men study: design and recruitment considerations for environmental epidemiologic studies in male reproductive health. 
  • The male-female health-survival paradox: a survey and register study of the impact of sex-specific selection and information bias. 
  • The psychometric properties of Pen-and-Pencil and Internet versions of the Midlife Women's Symptom Index (MSI). 
  • Toward a more meaningful in vitro fertilization success rate. 
  • Understanding Treatment Effect Terminology in Pain and Symptom Management Research. 
  • Use of design effects and sample weights in complex health survey data: a review of published articles using data from 3 commonly used adolescent health surveys. 
  • Use of re-randomized data in meta-analysis. 
  • Using college alumni populations in epidemiologic research: the UNC Alumni Heart Study. 
  • Using observational data to estimate prognosis: an example using a coronary artery disease registry. 
  • VA Stroke Study: neurologist care is associated with increased testing but improved outcomes. 
  • Value of surgical resection in children with high-risk neuroblastoma. 
  • Variability in IRBs regarding parental acceptance of passive consent. 
  • Variable selection for covariate-adjusted semiparametric inference in randomized clinical trials. 
  • Variation and Trends in the Documentation of National Institutes of Health Stroke Scale in GWTG-Stroke Hospitals. 
  • What can we learn from a decade of database audits? The Duke Clinical Research Institute experience, 1997--2006. 
  • Why should changing the bathwater have to harm the baby? 
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  Keywords of People

  • O'Connor, Christopher Michael, Richard Sean Stack, M.D. / Guidant Foundation Professor of Cardiology, Medicine, Clinical Pharmacology