Research MethodologyStatistics for the Practicing Spine Surgeon Supplementary Data Analysis MeasurementsGoyal, Dhruv K.C. BA; Grandhi, Nikhil BS; Lee, Thomas J. MS; Stolz, Katharine BS; Thomas, Alexander BS; Galetta, Matthew S. BA; Divi, Srikanth N. MD; Fang, Taolin MD; Schroeder, Gregory D. MD; Kepler, Christopher K. MD, MBA; Vaccaro, Alexander R. MD, PhD, MBAAuthor Information Department of Orthopaedic Surgery, Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA Dr Schroeder has received funds to travel from AO Spine and Medtronic. Dr Vaccaro has consulted or has done independent contracting for DePuy, Medtronic, Stryker Spine, Globus, Stout Medical, Gerson Lehrman Group, Guidepoint Global, Medacorp, Innovative Surgical Design, Orthobullets, Ellipse, and Vertex. He has also served on the scientific advisory board/board of directors/committees for Flagship Surgical, AO Spine, Innovative Surgical Design, and Association of Collaborative Spine Research. Dr Vaccaro has received royalty payments from Medtronic, Stryker Spine, Globus, Aesculap, Thieme, Jaypee, Elsevier, and Taylor Francis/Hodder and Stoughton. He has stock/stock option ownership interests in Replication Medica, Globus, Paradigm Spine, Stout Medical, Progressive Spinal Technologies, Advanced Spinal Intellectual Properties, Spine Medica, Computational Biodynamics, Spinology, In Vivo, Flagship Surgical, Cytonics, Bonovo Orthopaedics, Electrocore, Gamma Spine, Location Based Intelligence, FlowPharma, R.S.I., Rothman Institute and Related Properties, Innovative Surgical Design, and Avaz Surgical. He has also served as deputy editor/editor of Spine. In addition, Dr Vaccaro has also provided expert testimony. The remaining authors declare no conflict of interest. Reprints: Dhruv K.C. Goyal, BA, Department of Orthopaedic Surgery, Rothman Orthopaedic Institute, Thomas Jefferson University, 925 Chestnut Street, 5th Floor, Philadelphia, PA 19107 (e-mail: firstname.lastname@example.org). Received December 29, 2018 Accepted September 29, 2019 Online date: December 3, 2019 Clinical Spine Surgery: February 2020 - Volume 33 - Issue 1 - p 35-39 doi: 10.1097/BSD.0000000000000918 Buy Metrics Abstract With the rapid rise of clinical spine surgery literature in the last few decades, there is a greater need for practicing spine surgeons to confidently analyze and critique published literature within the field. The conclusions drawn from published studies are often integrated into a physician’s clinical decision-making. A strong knowledge in the fundamental statistical measurements used most frequently in spine surgery literature can enhance the ability to properly interpret the meaning of a study’s results. However, medical education often lacks the incorporation of clinically relevant statistical analysis. The purpose of this review is to provide an overview of some of the most commonly used statistical measurements in spine surgery, specifically intraclass correlation coefficient, diagnostic testing analyses, Kaplan-Meier curves, hazard ratios, distribution, and variance. © 2020 by Lippincott Williams & Wilkins, Inc.