A new self-administered questionnaire to monitor health-related quality of life in patients with COPD

Shin-Ping Tu, M. B. McDonell, J. A. Spertus, B. G. Steele, S. D. Fihn

Research output: Contribution to journalArticle

85 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)614-622
Number of pages9
JournalChest
Volume112
Issue number3
DOIs
StatePublished - Jan 1 1997
Externally publishedYes

Fingerprint

Chronic Obstructive Pulmonary Disease
Obstructive Lung Diseases
Quality of Life
Psychological Adaptation
Self Efficacy
Chronic Disease
Therapeutics
Rain
Surveys and Questionnaires
Patient Satisfaction
Reproducibility of Results
Dyspnea
Cross-Sectional Studies
Health

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 journalArticle

Tu, Shin-Ping ; McDonell, M. B. ; Spertus, J. A. ; Steele, B. G. ; Fihn, S. D. / A new self-administered questionnaire to monitor health-related quality of life in patients with COPD. In: Chest. 1997 ; Vol. 112, No. 3. pp. 614-622.
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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.",
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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.

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