Barber–Johnson diagram

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A Barber–Johnson diagram[example needed] is a method of presenting hospital statistics combining four different variables in a unique graph, introduced in 1973.[1] The method constructs a scattergram where length of stay, turnover interval, discharges, and deaths per available bed are combined. These four variables have a common relationship between them and their combination in the diagram permitted a new improved way for analyzing efficiency and performance of the hospital sector. The most complete reference about how to construct the diagram could be found in Yates.[2] In this book, the appendix explains in detail the way for elaborating this kind of diagram.


  1. ^ Barber B. and Johnson D., "The Presentation of Acute Hospital In-patient Statistics", Hospital and Health Services Review, 1973
  2. ^ Yates, John (1982), Hospital Beds: A problem for diagnostic and management, Heinemann Medical Books. ISBN 0-433-37030-0

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