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Correspondence |

A Scoring Application for the St. George’s Respiratory Questionnaire FREE TO VIEW

Marco Gelpi, MD; Jonathan Argentiero; Paul W. Jones, MD; Andreas Ronit, MD
Author and Funding Information

AUTHOR CONTRIBUTIONS: All authors contributed equally to the work.

FINANCIAL/NONFINANCIAL DISCLOSURES: The authors have reported to CHEST the following: P. W. J. is employed as a global medical expert, GlaxoSmithKline. A. R. has received traveling grants from Gilead and is the guarantor of this work. None declared (M. G., J. A.).

aViro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

bsoftware developer, Paris, France

cInstitute of Infection and Immunity, St George's, University of London, London, England

CORRESPONDENCE TO: Andreas Ronit, MD, Viro-immunology Research Unit, Department of Infectious Diseases 8632, University Hospital Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen Ø, Denmark


Copyright 2016, American College of Chest Physicians. All Rights Reserved.


Chest. 2016;150(3):747-748. doi:10.1016/j.chest.2016.05.029
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Quantification of subjective morbidity is essential in research and clinical management of patients with respiratory disease. The St. George’s Respiratory Questionnaire (SGRQ) was designed to measure health status impairment in airways disease. It has been used extensively since its original publication and has been evaluated in various respiratory diseases, including COPD. A PubMed and Scopus database search for SGRQ in the title, abstract, or keywords revealed more than 1,000 papers. The original version has been in existence for more than 2 decades, and has been translated into more than 70 different languages with appropriate linguistic and cultural validation.

The shorter version with 40 items (SGRQ-C) was validated specifically for COPD. The intention with this revision was to improve the signal to noise of the calculated scores by removing items that had weaker instrument properties, and at the same time produce scores equivalent to the SGRQ without specifying a recall period. The scoring algorithm for the SGRQ and SGRQ-C has been described in detail. A global score, and scores for each component (ie, symptoms, activity, and impacts) is calculated. Each component score is derived by dividing the summed weights, unique for all questions, by the maximum possible weight. To calculate the SGRQ and SGRQ-C score by hand may not be feasible in a routine setting because of its size and complexity. Even the researcher may find it cumbersome. Shorter instruments for measuring respiratory morbidity are available, but these may perform less well than their longer counterparts.

We developed an easy-to-use application for both the SGRQ and SGRQ-C and decided to share it with the respiratory community (Fig 1). It may help users save time and avoid miscalculations. Self-administering the questionnaires through this application may also prove useful in a clinical routine setting, but this approach needs validation.

Figure Jump LinkFigure 1 Score output from the St. George’s Respiratory Questionnaire (SGRQ). A similar output is obtained from the SGRQ-C. Scores can be saved and responses to each item can always be retrieved. The algorithm used in the software can be found at https://github.com/SGRQ/sgrq.Grahic Jump Location

The tool is free and available at http://sgrq.github.io/; it may be redistributed, and can be used on Windows, OSX, and Linux. We are currently also designing the software for tablet use. The St. George's University of London Medical School grants clinicians permission to use both questionnaires without charge, but the University charges commercial organizations a license fee.

References

Jones P.W. .Quirk F.H. .Baveystock C.M. . The St George's Respiratory Questionnaire. Respir Med. 1991;85:25-31 [PubMed]journal. [CrossRef] [PubMed]
 
Jones P.W. .Quirk F.H. .Baveystock C.M. .Littlejohns P. . A self-complete measure of health status for chronic airflow limitation. The St. George's Respiratory Questionnaire. Am Rev Respir Dis. 1992;145:1321-1327 [PubMed]journal. [CrossRef] [PubMed]
 
Meguro M. .Barley E.A. .Spencer S. .Jones P.W. . Development and validation of an improved, COPD-specific version of the St. George Respiratory Questionnaire. Chest. 2007;132:456-463 [PubMed]journal. [CrossRef] [PubMed]
 
Jones PW, Forde, Y. St George’s Repiratory Questionnaire Manual.http://www.healthstatus.sgul.ac.uk/SGRQ_download/SGRQ%20Manual%20June%202009.pdf. Accessed May 20, 2016.
 
Juniper E.F. .Guyatt G.H. .Cox F.M. .Ferrie P.J. .King D.R. . Development and validation of the Mini Asthma Quality of Life Questionnaire. Eur Respir J. 1999;14:32-38 [PubMed]journal. [CrossRef] [PubMed]
 

Figures

Figure Jump LinkFigure 1 Score output from the St. George’s Respiratory Questionnaire (SGRQ). A similar output is obtained from the SGRQ-C. Scores can be saved and responses to each item can always be retrieved. The algorithm used in the software can be found at https://github.com/SGRQ/sgrq.Grahic Jump Location

Tables

References

Jones P.W. .Quirk F.H. .Baveystock C.M. . The St George's Respiratory Questionnaire. Respir Med. 1991;85:25-31 [PubMed]journal. [CrossRef] [PubMed]
 
Jones P.W. .Quirk F.H. .Baveystock C.M. .Littlejohns P. . A self-complete measure of health status for chronic airflow limitation. The St. George's Respiratory Questionnaire. Am Rev Respir Dis. 1992;145:1321-1327 [PubMed]journal. [CrossRef] [PubMed]
 
Meguro M. .Barley E.A. .Spencer S. .Jones P.W. . Development and validation of an improved, COPD-specific version of the St. George Respiratory Questionnaire. Chest. 2007;132:456-463 [PubMed]journal. [CrossRef] [PubMed]
 
Jones PW, Forde, Y. St George’s Repiratory Questionnaire Manual.http://www.healthstatus.sgul.ac.uk/SGRQ_download/SGRQ%20Manual%20June%202009.pdf. Accessed May 20, 2016.
 
Juniper E.F. .Guyatt G.H. .Cox F.M. .Ferrie P.J. .King D.R. . Development and validation of the Mini Asthma Quality of Life Questionnaire. Eur Respir J. 1999;14:32-38 [PubMed]journal. [CrossRef] [PubMed]
 
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