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Patient Safety and Quality Improvement

Truth in Numbers: Statistics Crash Course for the Otolaryngologist Clinician

Tuesday, October 3, 2023
8:00 AM - 9:00 AM East Coast USA Time
Location: 202A

    Lead Presenter(s)

  • DP

    Diego A. Preciado, MD, PHD

    Chief of Otolaryngology
    Department of Otolaryngology–Head & Neck Surgery, George Washington University, Children's National Hospital, Washington, DC, USA; Editorial Board JAMA Otolaryngol Head Neck Surg
    Washington, DC, United States

    • Mentor(s)

  • DP

    Diego A. Preciado, MD, PHD

    Chief of Otolaryngology
    Department of Otolaryngology–Head & Neck Surgery, George Washington University, Children's National Hospital, Washington, DC, USA; Editorial Board JAMA Otolaryngol Head Neck Surg
    Washington, DC, United States

    • Co-Presenter(s)

  • Habib G. Zalzal, MD

    Assistant Professor
    Childrens National Hospital
    Washington, DC, United States

Disclosure(s):
Habib G. Zalzal, MD: No relevant relationships to disclose.
PROGRAM DESCRIPTION: One need not be an expert in statistical software, nor have a public health degree, to understand most of what is needed for critical interpretation of clinical data. Moreover, given the emergence of evidenced based medicine, it is critical for clinicians to have at least a rudimentary understanding of biostatistics as they pertain to clinical research. Using an interactive case-based approach, this course will cover essential and practical information for critically appraising or conducting research. The material covered will include a discussion of normal distributions, non-parametric data, continuous vs. categorical variables, effect size, confidence intervals, p-values, time-to-event analyses, correlations, multivariate regression models, and common statistical errors and misconceptions. The course aims to provide essential knowledge and simple tools for this purpose.

OUTCOME OBJECTIVE 1: Comprehend which statistical tests are needed in order to test specific hypotheses; while grasping the true meaning of significance

OUTCOME OBJECTIVE 2: Understand and learn how to determine effect size, z-scores, and multivariate regression

OUTCOME OBJECTIVE 3: Understand systematic review and metanalysis methodologies

BACKGROUND STATEMENT: Need for a practical review of statistical and data interpretation knowledge to improve research quality and inform medical literature interpretation and peer review process. Course was featured in ENT Bulletin 2022. Junior mentor expert in metanalysis methods (HZ) participating this year.