Abstract
Study objective: To develop and validate a brief, computer-scannable, self-administered questionnaire to monitor health-related quality of life in patients with COPD. The Seattle Obstructive Lung Disease Questionnaire (SOLQ) consists of 29 items measuring four health dimensions: physical function, emotional function, coping skills, and treatment satisfaction. Methods: A series of studies was performed to assess reliability, validity, and responsiveness. Internal consistency was measured using a cross-sectional survey of 203 COPD patients. Reproducibility was tested over a 4-month interval among 97 patients with self-reported stable conditions. To assess construct validity, SOLQ scales were correlated with corresponding Chronic Respiratory Disease Questionnaire (CRDQ) scales, the COPD Self-Efficacy Scale (CSES), percent predicted FEV1, and 6-rain walk test. Treatment satisfaction scores of 920 subjects were correlated with a general measure of patient satisfaction. Baseline and follow-up scores of subjects were compared to assess treatment responsiveness. Results: SOLQ scales were reliable (Cronbach's α 0.79 to 0.93, and intraclass correlation coefficients 0.64 to 0.87). Change in SOLQ scores correlated with corresponding CRDQ scales: dyspnea, r=0.42; emotional burden, r=0.49; mastery, r=0.36. Coping skills correlated highly with CSES, r=0.93. Treatment satisfaction correlation was r=0.54. Significant changes occurred in all three scales postintervention. Conclusion: The SOLQ is a reliable, valid, and responsive measure of physical and emotional function, coping skills, and treatment satisfaction. Brief, self-administered, and computer scannable, it is useful in monitoring long- term outcomes among large groups of COPD patients.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 614-622 |
| Number of pages | 9 |
| Journal | Chest |
| Volume | 112 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1997 |
| Externally published | Yes |
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Keywords
- Chronic obstructive pulmonary disease
- Functional status
- Health-related quality of life
- Questionnaire
ASJC Scopus subject areas
- Pulmonary and Respiratory Medicine
- Critical Care and Intensive Care Medicine
- Cardiology and Cardiovascular Medicine
Cite this
A new self-administered questionnaire to monitor health-related quality of life in patients with COPD. / Tu, Shin-Ping; McDonell, M. B.; Spertus, J. A.; Steele, B. G.; Fihn, S. D.
In: Chest, Vol. 112, No. 3, 01.01.1997, p. 614-622.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A new self-administered questionnaire to monitor health-related quality of life in patients with COPD
AU - Tu, Shin-Ping
AU - McDonell, M. B.
AU - Spertus, J. A.
AU - Steele, B. G.
AU - Fihn, S. D.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - Study objective: To develop and validate a brief, computer-scannable, self-administered questionnaire to monitor health-related quality of life in patients with COPD. The Seattle Obstructive Lung Disease Questionnaire (SOLQ) consists of 29 items measuring four health dimensions: physical function, emotional function, coping skills, and treatment satisfaction. Methods: A series of studies was performed to assess reliability, validity, and responsiveness. Internal consistency was measured using a cross-sectional survey of 203 COPD patients. Reproducibility was tested over a 4-month interval among 97 patients with self-reported stable conditions. To assess construct validity, SOLQ scales were correlated with corresponding Chronic Respiratory Disease Questionnaire (CRDQ) scales, the COPD Self-Efficacy Scale (CSES), percent predicted FEV1, and 6-rain walk test. Treatment satisfaction scores of 920 subjects were correlated with a general measure of patient satisfaction. Baseline and follow-up scores of subjects were compared to assess treatment responsiveness. Results: SOLQ scales were reliable (Cronbach's α 0.79 to 0.93, and intraclass correlation coefficients 0.64 to 0.87). Change in SOLQ scores correlated with corresponding CRDQ scales: dyspnea, r=0.42; emotional burden, r=0.49; mastery, r=0.36. Coping skills correlated highly with CSES, r=0.93. Treatment satisfaction correlation was r=0.54. Significant changes occurred in all three scales postintervention. Conclusion: The SOLQ is a reliable, valid, and responsive measure of physical and emotional function, coping skills, and treatment satisfaction. Brief, self-administered, and computer scannable, it is useful in monitoring long- term outcomes among large groups of COPD patients.
AB - Study objective: To develop and validate a brief, computer-scannable, self-administered questionnaire to monitor health-related quality of life in patients with COPD. The Seattle Obstructive Lung Disease Questionnaire (SOLQ) consists of 29 items measuring four health dimensions: physical function, emotional function, coping skills, and treatment satisfaction. Methods: A series of studies was performed to assess reliability, validity, and responsiveness. Internal consistency was measured using a cross-sectional survey of 203 COPD patients. Reproducibility was tested over a 4-month interval among 97 patients with self-reported stable conditions. To assess construct validity, SOLQ scales were correlated with corresponding Chronic Respiratory Disease Questionnaire (CRDQ) scales, the COPD Self-Efficacy Scale (CSES), percent predicted FEV1, and 6-rain walk test. Treatment satisfaction scores of 920 subjects were correlated with a general measure of patient satisfaction. Baseline and follow-up scores of subjects were compared to assess treatment responsiveness. Results: SOLQ scales were reliable (Cronbach's α 0.79 to 0.93, and intraclass correlation coefficients 0.64 to 0.87). Change in SOLQ scores correlated with corresponding CRDQ scales: dyspnea, r=0.42; emotional burden, r=0.49; mastery, r=0.36. Coping skills correlated highly with CSES, r=0.93. Treatment satisfaction correlation was r=0.54. Significant changes occurred in all three scales postintervention. Conclusion: The SOLQ is a reliable, valid, and responsive measure of physical and emotional function, coping skills, and treatment satisfaction. Brief, self-administered, and computer scannable, it is useful in monitoring long- term outcomes among large groups of COPD patients.
KW - Chronic obstructive pulmonary disease
KW - Functional status
KW - Health-related quality of life
KW - Questionnaire
UR - http://www.scopus.com/inward/record.url?scp=0030802611&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030802611&partnerID=8YFLogxK
U2 - 10.1378/chest.112.3.614
DO - 10.1378/chest.112.3.614
M3 - Article
C2 - 9315792
AN - SCOPUS:0030802611
VL - 112
SP - 614
EP - 622
JO - Chest
JF - Chest
SN - 0012-3692
IS - 3
ER -