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an observation so distant from the central mass of the data that it noticeably influences results and must be carefully checked to ensure it is not an error.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
An observation that differs so widely from all others in a set as to justify the conclusion that a gross error has occurred or that it comes from a different population.
Farlex Partner Medical Dictionary © Farlex 2012
outlierAny value outside of an expected range.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
outlierManaged care A Pt who falls outside of the norm–ie, who has an extremely long length of hospital stay or has incurred extraordinarily high costs. See Extreme outlier, High mortality outlier.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
1. Deviant values or figures that are obviously from a different population than those from the rest of the sample.
2. Additions to an estimated cost of delivered services when exceeding a fixed loss threshold.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012