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Health and Quality of Life Outcomes
Open Access
Retraction
Retraction: Psychometric characteristics of the ankylosing
spondylitis quality of life questionnaire, short form 36 health survey,
and functional assessment of chronic illness therapy-fatigue
subscale
Dennis A Revicki*
1
, Anne M Rentz
1
, Michelle P Luo
2
, Robert L Wong
3
,
Lynda C Doward
4
and Stephen P McKenna
4
Address:
1
Center for Health Outcomes Research, United Biosource Corporation, Bethesda, MD, USA,
2
Formerly Abbott Laboratories, Global
Health Economics & Outcomes Research, Abbott Park, IL, USA,
3
Abbott Laboratories, Abbott Immunology, Parsippany, NJ, USA and

4
Galen
Research, Manchester, Lancashire, England, UK
Email: Dennis A Revicki* - ; Anne M Rentz - ; Michelle P Luo - ;
Robert L Wong - ; Lynda C Doward - ; Stephen P McKenna - smckenna@galen-
research.com
* Corresponding author
Abstract
Retraction of Revicki DA, Rentz AM, Luo MP, Wong RL, Doward LC, McKenna SP: Psychometric
characteristics of the ankylosing spondylitis quality of life questionnaire, short form 36 health
survey, and functional assessment of chronic illness therapy-fatigue subscale. Health and Quality of
Life Outcomes 2009, 7: 6.
Retraction
Not all authors approved of the final content or publica-
tion of this article [1]. Subsequently, all authors have
agreed that the article should be retracted. This article is
being retracted as assumptions were made about the
nature of the outcome data that should have been tested
before the analyses were conducted. In addition, there is
disagreement among the authors about the statistical
analyses that were used and it is possible that incorrect
conclusions may have been drawn that are not supported
by the data presented. The authors wish to apologise for
any inconvenience this may have caused the editorial,
publishing staff and readers.
References
1. Revivki DA, Rentz AM, Luo MP, Wong RL, Doward LC, McKenna SP:
Psychometric characteristics of the ankylosing spondylitis
quality of life questionnaire, short form 36 health survey, and
functional assessment of chronic illness therapy-fatigue sub-

scale. Health and Quality of Life Outcomes 2009, 7:6.
Published: 17 April 2009
Health and Quality of Life Outcomes 2009, 7:34 doi:10.1186/1477-7525-7-34
Received: 6 April 2009
Accepted: 17 April 2009
This article is available from: />© 2009 Revicki et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( />),
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.