Development of a validation algorithm for 'present on admission' flagging |
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| Authors: | Terri J Jackson Jude L Michel Rosemary Roberts Jennie Shepheard Diana Cheng Julie Rust Catherine Perry |
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| Institution: | (1) Australian Centre for Economic Research on Health (ACERH), School of Medicine, University of Queensland, Brisbane, Australia;(2) Victorian Department of Health, 50 Lonsdale Street, Melbourne, Victoria, Australia;(3) Health Information Management, La Trobe University, Victoria, Australia;(4) National Centre for Classification in Health (NCCH), Faculty of Health Sciences, The University of Sydney, Lidcombe New South Wales, Australia |
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| Abstract: | Background The use of routine hospital data for understanding patterns of adverse outcomes has been limited in the past by the fact that
pre-existing and post-admission conditions have been indistinguishable. The use of a 'Present on Admission' (or POA) indicator
to distinguish pre-existing or co-morbid conditions from those arising during the episode of care has been advocated in the
US for many years as a tool to support quality assurance activities and improve the accuracy of risk adjustment methodologies.
The USA, Australia and Canada now all assign a flag to indicate the timing of onset of diagnoses. For quality improvement
purposes, it is the 'not-POA' diagnoses (that is, those acquired in hospital) that are of interest. |
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