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St. George's Respiratory Questionnaire

The SGRQ is a 50-item questionnaire developed to measure health status (quality of life) in patients with diseases of airways obstruction.

Scores are calculated for three domains:
Symptoms, Activity and Impacts (Psycho-social) as well as a total score.

Psychometric testing has demonstrated its repeatability, reliability and validity. Sensitivity has been demonstrated in clinical trials.

A minimum change in score of 4 units was established as clinically relevant after patient and clinician testing. The SGRQ has been used in a range of disease groups including asthma, chronic obstructive pulmonary disease (COPD) and bronchiectasis, and in
a range of settings such as randomised controlled therapy trials and population surveys.

Jones PW, Quirk FH, Baveystock CM, Littlejohns P. A self-complete measure for chronic airflow limitation - the St George's Respiratory Questionnaire. Am Rev Respir Dis 1992;145:1321-1327.

The SGRQ correlates significantly with other measures of disease activity such as cough, dyspnoea, 6-min walk test and FEV1 as well as other measures of general health such as the SIP and SF36

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