Interviews with authors of JAMA Guide to Statistics and Methods chapters about common and new statistics and methods used in clinical research and reported in medical journals.
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JAMA editors and authors explain the methods underlying clinical research to help students, trainees, and health professionals use the published medical literature to make evidence-based decisions for patients. JAMAevidence is an evidence-based medicine (EBM) resource created and maintained by the JAMA Network to promote the use of EBM to improve patient care.
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Interviews with authors of Rational Clinical Examination systematic reviews in JAMA about the accuracy of the medical history, physical examination, and laboratory testing for the diagnosis of common medical conditions. JAMAevidence is an evidence-based medicine (EBM) resource created and maintained by JAMA Network to promote the use of EBM to improve patient care.
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Interviews with authors of Care at the Close of Life reviews in JAMA about management issues in end of life and palliative care. JAMAevidence is an evidence-based medicine (EBM) resource created and maintained by the JAMA Network to promote the use of EBM to improve patient care.
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Futility in Clinical Trials With Dr Wendelberger
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Barbara Wendelberger, PhD, Berry Consultants, discusses Futility in Clinical Trials with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Futility in Clinical Trials
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Interim Analyses During Group Sequential Trials With Dr Meurer
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William J. Meurer, MD, MS, University of Michigan Medical School, discusses Interim Analyses During Group Sequential Trials with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Interim Analyses During Group Sequential Clinical Trials
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Mark C. Wilson MD, MPH, University of Iowa, discusses Teachers’ Guides to the Users’ Guides with Gordon H. Guyatt, MD, MSc, McMaster University. Related Content: Evidence vs Consensus in Clinical Practice Guidelines How to Interpret and Use a Clinical Practice Guideline or Recommendation
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Genome-Wide Association Studies With Dr Rotter
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Jerome I. Rotter, MD, The Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute, Department of Pediatrics, Harbor-UCLA Medical Center, discusses Genome-Wide Association Studies with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Genome-Wide Association Studies…
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Conditional Power: How Likely Is Trial Success?
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Benjamin R. Saville, PhD, president and lead statistical scientist of Adaptix Trials, LLC and adjoint associate professor of biostatistics at Vanderbilt University Medical Center, discusses Conditional Power: How Likely Is Trial Success? with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Conditional Power…
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Bayesian Hierarchical Models With Dr McGlothlin
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Anna E. McGlothlin, PhD, Berry Consultants, LLC, discusses Bayesian Hierarchical Models with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Bayesian Hierarchical Models
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Sequential, Multiple Assignment, Randomized Trial Designs With Dr Kidwell
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Kelley Kidwell, PhD, professor of biostatistics, University of Michigan, discusses Sequential, Multiple Assignment, Randomized Trial Designs with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Sequential, Multiple Assignment, Randomized Trial Designs
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Clinical Diagnosis of Dislocated Hips in Newborns
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Dislocated hips in newborns can lead to complex surgery, interruption to family life, and premature osteoarthritis. Daniel Perry, MBChb(Hons), PhD, of Alder Hey Children's Hospital, University of Liverpool, discusses the clinical diagnosis of dislocated hips in newborns with JAMA Associate Editor David Simel, MD, MHS. Related Content: Does This Inf…
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Target Trial Emulation for Causal Inference From Observational Data With Dr Hernán
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Miguel A. Hernán, MD, DrPH, professor of epidemiology, Harvard T.H. Chan School of Public Health, discusses Target Trial Emulation: A Framework for Causal Inference From Observational Data with JAMA Statistical Editor Roger J. Lewis, MD, PhD. Related Content: Target Trial Emulation
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On Deep Learning for Medical Image Analysis With Dr Carin
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses On Deep Learning for Medical Image Analysis with Lawrence Carin, PhD. Related Content: On Deep Learning for Medical Image Analysis
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Patient-Reported Outcome Measures in Clinical Research With Drs Weinfurt and Reeve
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Patient-Reported Outcome Measures in Clinical Research with Kevin P. Weinfurt, PhD, and Bryce B. Reeve, PhD. Related Content: Patient-Reported Outcome Measures in Clinical Research
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Does This Child With High Blood Pressure Have Secondary Hypertension? With Dr Nugent
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JAMA Associate Editor David L. Simel, MD, MHS, discusses Does This Child With High Blood Pressure Have Secondary Hypertension? with James T. Nugent, MD, MPH. Related Content: Does This Child With High Blood Pressure Have Secondary Hypertension?
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Immortal Time Bias in Observational Studies With Dr Kabir Yadav
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Immortal Time Bias in Observational Studies with Kabir Yadav, MDCM, MS, MSHS. Related Content: Immortal Time Bias in Observational Studies
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Adjustment for Baseline Characteristics in Randomized Clinical Trials
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Adjustment for Baseline Characteristics in Randomized Clinical Trial with Lars W. Andersen, MD, MPH, PhD, DMSc. Related Content: Adjustment for Baseline Characteristics in Randomized Clinical Trials
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Odds Ratios—Current Best Practice and Use With Dr Norton
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Odds Ratios—Current Best Practice and Use with Edward C. Norton, PhD. Related Content: Odds Ratios—Current Best Practice and Use Types and Distribution of Payments From Industry to Physicians in 2015
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Assessing the Strength of Recommendations: The GRADE Approach With Dr Vandvik
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Gordon H. Guyatt, MD, MSc, discusses Assessing the Strength of Recommendations: The GRADE Approach with Per Olav Vandvik, MD, PhD. Related Content: How to Interpret and Use a Clinical Practice Guideline or Recommendation
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Understanding and Applying the Results of a Systematic Review With Dr Murad
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Host Gordon Guyatt, MD, MSc, discusses Understanding and Applying the Results of a Systematic Review with M. Hassan Murad, MD, MPH. Related Content: How to Read a Systematic Review and Meta-analysis and Apply the Results to Patient Care Acute Treatments for Episodic Migraine in Adults
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Estimands, Estimators, and Estimates With Dr Little
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Roger J. Lewis, MD, PhD, discusses Estimands, Estimators, and Estimates with Roderick J. Little, PhD, in the JAMA Guide to Statistics and Methods series. Related Content: Estimands, Estimators, and Estimates
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Fixed-Effects and Random-Effects Models With Dr Murad
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Gordon H. Guyatt, MD, MSc, discusses Fixed-Effects and Random-Effects Models with M. Hassan Murad, MD. Related Content: Random-Effects Meta-analysis
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Does This Patient With Acute Infectious Conjunctivitis Have a Bacterial Infection? With Dr Johnson
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David L. Simel, MD, discusses Does This Patient With Acute Infectious Conjunctivitis Have a Bacterial Infection? with Davin Johnson, MD. Related Content: Does This Patient With Acute Infectious Conjunctivitis Have a Bacterial Infection?
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Interpreting the Results of Intention-to-Treat, Per-Protocol, and As-Treated Analyses With Dr Smith
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Roger J. Lewis, MD, PhD, discusses Interpreting the Results of Intention-to-Treat, Per-Protocol, and As-Treated Analyses with Valerie A. Smith, DrPH. Related Content: Interpreting the Results of Intention-to-Treat, Per-Protocol, and As-Treated Analyses of Clinical Trials
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Time-to-Event Analysis with Juliana Tolles, MD, MHS. Related Content: Time-to-Event Analysis
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Adjusted Analyses in Studies Addressing Therapy and Harm With Dr Agoritsas
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Gordon H. Guyatt, MD, MSc, discusses Adjusted Analyses in Studies Addressing Therapy and Harm with Thomas Agoritsas, MD, PhD. Related Content: Adjusted Analyses in Studies Addressing Therapy and Harm
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Adjusting for Nonadherence or Stopping Treatments With Drs Adler and Latimer
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Adjusting for Nonadherence or Stopping Treatments with Amanda I. Adler, MD, PhD, and Nicholas Latimer, PhD. Related Content: Adjusting for Nonadherence or Stopping Treatments in Randomized Clinical Trials
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Gordon Guyatt, MD, MSc, discusses Spectrum Bias with Reem A. Mustafa. MD, MPH, PhD.
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Worst-Rank Score Methods—A Nonparametric Approach to Informatively Missing Data With Dr Lachin
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JAMA Statistical Editor Roger J. Lewis, MD, PhD, discusses Worst-Rank Score Methods—A Nonparametric Approach to Informatively Missing Data with John M. Lachin, ScD. Related Content: Worst-Rank Score Methods—A Nonparametric Approach to Informatively Missing Data
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Discrimination and Calibration of Clinical Prediction Models With Dr Alba
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Gordon Guyatt, MD, MSc, discusses Discrimination and Calibration of Clinical Prediction Models with Ana Carolina Alba, MD, PhD. Related Content: Discrimination and Calibration of Clinical Prediction Models With Dr Alba Read Transcript
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Using Latent Class Analysis to Identify Hidden Clinical Phenotypes With Dr Heather G. Allore
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JAMA Statistical Editor Roger Lewis, MD, PhD, discusses Using Latent Class Analysis to Identify Hidden Clinical Phenotypes with Heather G. Allore, PhD. Related Content:
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How to Interpret and Use a Clinical Practice Guideline or Recommendation With Dr Gordon Guyatt and Dr Brignardello-Petersen
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Host Robert M. Golub, MD, discusses How to Interpret and Use a Clinical Practice Guideline or Recommendation with Gordon H. Guyatt, MD, MSc, and Romina Brignardello-Petersen, DDS, MSc, PhD.
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Measuring Agreement Beyond Chance With Dr Thomas McGinn
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Gordon Guyatt, MD, discusses Measuring Agreement Beyond Chance with Thomas McGinn, MD, MPH. Related Content: Does This Patient Have Infectious Mononucleosis? The Rational Clinical Examination Systematic Review
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Use of Run-in Periods in Randomized Trials With Dr Armitage
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JAMA Statistical Editor Roger Lewis, MD, PhD, discusses Use of Run-in Periods in Randomized Trials with Jane M. Armitage, MBBS. Related Content: Use of Run-in Periods in Randomized Trials With Dr Armitage Short- and Long-term Effects of a Mobile Phone App in Conjunction With Brief In-Person Counseling on Physical Activity Among Physically Inactive …
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Regression Discontinuity Study Design to Estimate Observational Differences With Dr Maciejewski
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JAMA Statistical Editor Roger Lewis, MD, discusses Regression Discontinuity Design with Matthew L. Maciejewski, PhD. Related Content: Regression Discontinuity Design Using Instrumental Variables to Address Bias From Unobserved Confounders
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Gordon H. Guyatt, MD, MSc, discusses
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Does This Adult Patient Have Hypertension? Interview With Dr Anthony Joseph Viera
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David Simel, MD, discusses Does This Patient Have Hypertension? with Anthony J. Viera, MD, MPH. Related Content: Does This Adult Patient Have Hypertension? Interview With Dr Anthony Joseph Viera USPSTF Recommendation: Screening for Hypertension in Adults USPSTF Review: Screening for Hypertension in Adults…
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Case-Control Studies: Using “Real-world” Evidence to Assess Association, With Dr Irony
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JAMA Statistical Editor Roger Lewis, MD, discusses Case-Control Studies: Using “Real-world” Evidence to Assess Association, With Dr Irony.
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Gordon Guyatt, MD, discusses economic analysis with Paul Moayyedi, PhD
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Equipoise in Research—Integrating Ethics and Science in Human Research
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Roger J. Lewis, MD, PhD, discusses Equipoise in Research—Integrating Ethics and Science in Human Research with Alex John London, PhD Related Content: Equipoise in Research—Integrating Ethics and Science in Human Research
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Bayesian Analysis: Using Prior Information to Interpret the Results of Clinical Trials
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Roger J. Lewis, MD, PhD, discusses Bayesian Analysis: Using Prior Information to Interpret the Results of Clinical Trials with Melanie Quintana, PhD Related Content: Bayesian Analysis: Using Prior Information to Interpret the Results of Clinical Trials Effect of Therapeutic Hypothermia Initiated After 6 Hours of Age on Death or Disability Among New…
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Cost-effectiveness analysis defines trade-offs between costs, harms, and benefits of alternative treatments and combines them into a single metric, the incremental cost-effectiveness ratio (ICER), that can inform decisions about which interventions to recommend when limited resources are available. Gillian Sanders-Schmidler, PhD, professor of popul…
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Misleading Presentations of Clinical Trial Results with Dr Victor Montori
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Gordon Guyatt, MD, discusses Misleading Presentations of Clinical Trial Results with Victor Montori, MD Related Content: Misleading Presentations of Clinical Trial Results with Dr Victor Montori When Can Intermediate Outcomes Be Used in Clinical Trials? When Guidelines Recommend Shared Decision-making…
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Does This Patient Have Hip Osteoarthritis? Interview with Dr David Metcalfe
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David Simel, MD, discusses Does This Patient Have Hip Osteoarthritis? with David Metcalfe, PhD, MRCP, MRCS, MRCEM
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Surrogate Outcomes from the Users’ Guides to the Medical Literature
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Anne M. Holbrook, MD and Gordon Guyatt, MD, discuss Surrogate Outcomes from the JAMA Users’ Guides to the Medical Literature Related Content: When Can Intermediate Outcomes Be Used as Surrogate Outcomes? FDA Acceptance of Surrogate End Points for Cancer Drug Approval: 1992-2019 What Constitutes a Valid Surrogate End Point in Cancer Clinical Trials?…
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Multiple Comparison Procedures from the JAMA Guide to Statistics and Methods
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JAMA Deputy Editor Edward Livingston, MD, discusses "Multiple Comparison Procedures" with Dr. Jing Cao, PhD
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Did This Patient Have Cardiac Syncope? Interview with Edward Etchells, MD, MSc
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David Simel, MD, discusses Did This Patient Have Cardiac Syncope? with Edward Etchells, MD, MSc
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Logistic Regression—What It Is and How to Use It in Clinical Research
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Logistic regression is one of the most commonly used statistical analytic tools in the medical literature. William Meurer, MD, from the University of Michigan, and Juliana Tolles, MD, from UCLA, discuss a JAMA Guide to Statistics and Methods article they wrote entitled “Logistic Regression Diagnostics: Understanding How Well a Model Predicts Outcom…
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Randomization in Clinical Trials from the JAMA Guide to Statistics and Methods
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Roger J. Lewis, MD, PhD, discusses Randomization in Clinical Trials from the JAMA Guide to Statistics and Methods Related Article(s): Randomization in Clinical Trials
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How to Read Articles That Use Machine Learning With Yun Liu, PhD
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Interview with Yun Liu, author of How to Read Articles That Use Machine Learning: Users’ Guides to the Medical Literature
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Will This Patient Be Difficult to Intubate? Interview with Dr Michael Detsky
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Dr David Simel discusses Will This Patient Be Difficult to Intubate? with Dr Michael Detsky
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The Stepped-Wedge Clinical Trial: Evaluation by Rolling Deployment
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Cluster randomized trials are performed when an intervention must be delivered to a group of patients like when testing new nursing protocols on award or different means for cleaning beds on a ward. One type of cluster trials is called a stepped-wedge where every cluster in the study ultimately undergoes the intervention. How this works it is expla…
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Minimal Clinically Important Difference: Defining What Really Matters to Patients
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JAMA Deputy Editor Edward Livingston, MD, discusses Minimal Clinically Important Difference: Defining What Really Matters to Patients with Anna E. McGlothlin, PhD
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