Are results of the SF-36 health survey and the nottingham health profile similar?: A comparison in COPD patients

doi:10.1016/S0895-4356(96)00420-9

Journal of Clinical Epidemiology

Volume 50, Issue 4, April 1997, Pages 463-473

https://doi.org/10.1016/S0895-4356(96)00420-9 Get rights and content

Abstract

A number of questionnaires have been used to assess the health-related quality of life of patients with chronic obstructive pulmonary disease (COPD). The study compares the performance of the SF-36 and the Nottingham Health Profile (NHP) in a sample of 321 male patients with COPD. Score distributions, reliability estimates, and several item scaling tests, including Rasch analysis were compared. Finally, we assessed the relative ability of the two instruments considered in discriminating different levels of disease severity by comparing: (a) their correlations with dyspnea and %FEV₁; the receiver operating characteristic (ROC) curves; and the F-statistics. The SF-36 scores were less skewed and more homogeneously distributed than NHP scores. Item scaling tests and reliability estimates showed a better performance of SF-36 items and scales. Nevertheless, results of Rasch analysis evidenced that both instruments have very similar scaling characteristics. Validity results did not show a consistent pattern of superiority for either of the instruments. For the physical domain, correlations of NHP and SF-36 scores with %FEV₁ and dyspnea were very similar and substantial (r ≥ 0.30). F-statistics showed that SF-36 physical scale was more precise (86%) than the NHP counterpart in discriminating among levels of dyspnea and %FEV₁ impairment. Nevertheless, the ROC curve and its associated area under the curve did not show a significant difference (p > 0.10). Overall results suggest that both instruments are similar in discriminating among different levels of respiratory impairment.

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^☆: This study was supported by a grant from the “Fondo de Investigatión Sanitaria (FIS), Expte. n ° 92/0312.” Additional support was provided by the Generalitat de Catalunya (CIRIT/1995 SGR 00434).

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Original articleAre results of the SF-36 health survey and the nottingham health profile similar?: A comparison in COPD patients☆

Abstract

J Clin Epidemiol

Dis Chest

Soc Sci Med

J Clin Epidemiol

J Clin Epidemiol

J Clin Epidemiol

Health related quality of life among patients with chronic obstructive pulmonary disease

Thorax

Issues in quality-of-life measurement in clinical trials

Controlled Clin Trials

A self-complete measure of health status for chronic airflow limitation. The St. George's Respiratory Questionnaire

Am Rev Respir Dis

The Sickness Impact Profile: Validation of a health status measure

Med Care

Changes in dyspnea, health status and lung function in chronic airway disease

Am J Respir Crit Care Med

Quality of life in asthma. I. Internal consistency and validity of the SF-36 questionnaire

Am J Respir Crit Care Med

Spirometric reference values from a Mediterranean population

Bull Eur Physiopatol Respir

Measuring function and well-being: Some lessons from the Medical Outcomes Study

La version española del SF-36 Health Survey (Cuestionario de Salud SF-36): Un instrumento para la medida de los resultados clínicos [The Spanish version of the SF-36 Health Survey: An instrument for measuring clinical outcomes]

Med Clin (Barc)

Spanish version of the Nottingham Health Profile: Translation and preliminary validity

Am J Public Health

The Spanish version of the Nottingham Health Profile: A review of adaptation and instrument characteristics

Qual Life Res

Measurement of general health status of non-oxygen-dependent chronic obstructive pulmonary disease patients

Med Care

Original article
Are results of the SF-36 health survey and the nottingham health profile similar?: A comparison in COPD patients☆