Open Access

Erratum To: The health services burden of heart failure: an analysis using linked population health data-sets

  • Jane Robertson1, 5Email author,
  • Patrick McElduff2,
  • Sallie-Anne Pearson3,
  • David A Henry1, 4,
  • Kerry J Inder1 and
  • John R Attia1, 2
BMC Health Services Research201313:179

DOI: 10.1186/1472-6963-13-179

Received: 11 March 2013

Accepted: 11 March 2013

Published: 17 May 2013

The original article was published in BMC Health Services Research 2012 12:103

Correction

After publication of this work [1], we noted that we inadvertently included the wrong version of Table two. The Charlson scores presented in the table of the published paper did not exclude heart failure (as described in the methods). Therefore all estimates of comorbidity burden are inflated by one point. While this changes the absolute values of the comorbidity burden it does not alter the conclusions of the study or the patterns of comorbidity described.

The correct data are shown in the following revised Table two (Table 1 here):
Table 1

Co-morbidity burden assessed by Charlson Index

Variable

Statistic

2002 – 03*

2003 - 04

2004 - 05

2005 - 06

2006 - 07

  

(N = 5854)

(N = 5935)

(N = 5606)

(N = 5813)

(N = 5953)

Charlson Score

mean (sd)

1.2 (1.5)

1.2 (1.5)

1.5 (1.6)

1.3 (1.5)

1.4 (1.6)

(based on index admission)

median

1.0

1.0

1.0

1.0

1.0

(q1, q3)

(q1, q3)

(0.0, 2.0)

(0.0, 2.0)

(0.0, 2.0)

(0.0, 2.0)

(0.0, 2.0)

Charlson Score

mean (sd)

1.7 (1.8)

1.8 (1.9)

2.0 (2.0)

1.8 (1.9)

1.9 (2.0)

(based on two years history)

median

1.0

1.0

2.0

2.0

2.0

(q1, q3)

(q1, q3)

(0.0, 3.0)

(0.0, 3.0)

(0.0, 3.0)

(0.0, 3.0)

(0.0, 3.0)

* Financial Year (1 July – 30 June).

† N = number of persons with index admissions.

sd = standard deviation; q1,q3 = quartile 1, quartile 3.

The revised text in the results should read:

Comorbidity burden

Patients had a median of 1.0 comorbidity recorded at baseline admission, although the range was wide (0–12, not including heart failure), with some evidence of an increase in comorbidity burden over time Table two (Table 1 here). Re-calculation of the Charlson Index from hospital separation codes at the index admission and all admissions in the previous two years combined did not change the estimates substantially. Across the cohort this had the effect of increasing the mean number of comorbidities per patient by 0.5, with the median number of recorded comorbidities increasing from 1.0 to 2.0.

Notes

Authors’ Affiliations

(1)
School of Medicine and Public Health, The University of Newcastle
(2)
Hunter Medical Research Institute, The University of Newcastle
(3)
UNSW Cancer Research Centre, University of New South Wales and Prince of Wales Clinical School
(4)
Institute for Clinical Evaluative Sciences and Department of Medicine, University of Toronto
(5)
Clinical Pharmacology, Calvary Mater Hospital, The University of Newcastle

References

  1. Robertson J, McElduff P, Pearson S-A, Henry DA, Inder KJ, Attia JR: The health services burden of heart failure: an analysis using linked population health data-sets. BMC Health Services Research. 2012, 12: 103-10.1186/1472-6963-12-103.View ArticlePubMedPubMed CentralGoogle Scholar
  2. Pre-publication history

    1. The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1472-6963/13/179/prepub

Copyright

© Robertson et al.; licensee BioMed Central Ltd. 2013

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Advertisement