nach oben

Quality of Life Research

Erschienen in:

01.03.2008

An 18-item standardized Asthma Quality of Life Questionnaire-AQLQ(S)

verfasst von: Eirini Grammatopoulou, Emmanouil Skordilis, Dimitra Koutsouki, George Baltopoulos

Erschienen in: Quality of Life Research | Ausgabe 2/2008

Einloggen, um Zugang zu erhalten

Abstract

The purpose of the present study was to examine the validity and reliability of the Asthma Quality of Life Questionnaire-AQLQ(S) in a sample of 160 Greek patients with asthma. Following evidence for sample-specific validity, the AQLQ(S) model was examined through exploratory and confirmatory factor analysis. An 18-item AQLQ(S) with the four factors of symptoms, activity limitations, sleep, and exposure in environmental stimuli fits the data (χ²/df ratio = 2.26, NNFI = 0.92, CFI = 0.94, SRMR = 0.05). The 18-item AQLQ(S) showed a high internal consistency (Cronbach’ a coefficient ranged from 0.83 to 0.96) and high 9-week test-retest reliability (overall r = 0.88, ICC = 0.94). Responsiveness was confirmed throughout 2X2 ANOVA and 2X2 MANOVA, with respect to the total score (F = 42.30, P < 0.05), and the four AQLQ(S) factors (Wilks’ λ = 0.68, F = 17.59, P < 0.05). The cross-sectional correlations between the 18-item AQLQ(S) and the: (1) FEV1% predicted and (2) Borg scale were low and moderately high, respectively. In conclusion, the 18-item AQLQ(S) derived from exploratory and confirmatory factor analysis appeared to have sufficient construct validity, cross-sectional validity, responsiveness, satisfactory test-retest reliability and internal consistency evidence for the Greek sample of adults with asthma.

Schipper, H., Clinch, J., & Powell, V. (1996). Definitions and conceptual issues. In B. Spilker (Ed.), Quality of life and pharmacoeconomics in clinical trials (pp. 11–23). Philadelphia: Lippincott-Raven.

Juniper, E. F., Guyatt, G. H., Streiner, D. L., & King, D. R. (1997). Clinical impact versus factor analysis for quality of life questionnaire construction. Journal of Clinical Epidemiology, 50, 233–238.PubMedCrossRef

Ehrs, P. O., Sundblad, B. M., & Larsson, K. (2006). Quality of life and inflammatory markers in mild asthma. Chest, 129, 624–631.PubMedCrossRef

Juniper, E. F., Guyatt, G. H., Epstein, R. S., Ferrie, P. J., Jaeschke, R., & Hiller, T. K. (1992). Evaluation of impairment of health related quality of life in asthma: Development of a questionnaire for use in clinical trials. Thorax, 47, 76–83.PubMedCrossRef

Juniper, E. F., Buist, S., Cox, F. M., Ferrie, P. J., & King, D. R. (1999). Validation of standardized version of the asthma quality of life questionnaire. Chest, 115, 1265–1270.PubMedCrossRef

Leroyer, C., Lebrun, T., Proust, A., Lenne, X., Lucaw, E., & Rio, G. (1998). Knowledge, self-management and quality of life in asthma: A cross-sectional study of the French version of the asthma quality of life questionnaire. Quality of Life Research, 7, 267–272.PubMedCrossRef

Sanjuas, C., Alonso, J., Ferrer, M., Curull, V., Broquetas, J. M., & Antò, J. M. (2001). Adaptation of the asthma quality of life questionnaire to a second language preserves its critical properties: The Spanish version. Journal of Clinical Epidemiology, 54, 182–189.PubMedCrossRef

Spirić, V. T., Bogić, S. M., Janković, S., Maksimović, N., Miljanović, S. M., Popadić, Α. P., Rasković, S., & Milić, N. (2004). Assessment of the asthma quality of life questionnaire (AQLQ): Serbian translation. Croatian Medical Journal, 45, 188–194.

Tan, W. C., Tan, J. L., Wee, E. L., Niti, M., & Ng, T. P. (2004). Validation of the English version of the asthma quality of life questionnaire in a multi-ethnic Asian population. Quality of Life Research, 13, 551–556.PubMedCrossRef

10.

Oguzturk, O., Ekici, A., Kara, M., Ekici, M., Arslan, M., Iteginli, A., Kara, T., & Kurtipek, E. (2005). Psychological status and quality of life in elderly patients with asthma. Psychosomatics, 46, 41–46.PubMedCrossRef

11.

Apter, A. J., Reisine, S. T., Affleck, G., Barrows, E., & ZuWallack, R. L. (1999). The influence of demographic and socioeconomic factors on health- related quality of life in asthma. Journal of Allergy and Clinical Immunology, 103, 72–78.PubMedCrossRef

12.

Grammatopoulou, E., Skordilis, E., & Koutsouki, D. (2007). Validity and Reliability of the Standardized Asthma Quality of Life Questionnaire—AQLQ(S) in Greece. In M. A. Lange (Ed.), Leading edge psychological tests and testing research (pp. 89–108). New York: Nova Science Publishers.

13.

Rowe, B. H., & Oxman, A. D. (1993). Performance of an asthma quality of life questionnaire in an outpatient setting. American Review of Respiratory Disorders, 148, 675–681.

14.

Rutten-van Mölken, M. H., Custers, F., van Doorslaer, E. A., Jansen, C. M., Heurmann, L., & Maesen, F. V. (1995). Comparison of performance of four instruments in evaluating the effects of salmeterol on asthma quality of life. European Respiratory Journal, 8, 888–898.PubMed

15.

Juniper, E. F., Guyatt, G. H., Ferrie, P. J., & Griffith, L. E. (1993). Measuring quality of life in asthma. American Review of Respiratory Disorders, 147, 832–838.

16.

Leidy, Ν. Κ., Chan, K. S., & Coughlin, C. (1997). Psychometric performance of the asthma quality of life questionnaire in a US sample. Quality of Life Research, 7, 127–134.CrossRef

17.

Juniper, E. F., Norman, G. R., Cox, F. M., & Roberts, J. N. (2001). Comparison of the standard gamble, rating scale, AQLQ and SF-36 for measuring quality of life in asthma. European Respiratory Journal, 18, 38–44.PubMedCrossRef

18.

Sherrill, C., & O’Connor, J. (1999). Guidelines for improving adapted physical activity research. Adapted Physical Activity Quarterly, 16, 1–8.

19.

Sawilowsky, S. (2000). Psychometrics versus datametrics: Comment on Vacha-Haase’s ‘reliability generalization’ method and some EPM editorial policies. Educational and Psychological Measurement, 60, 174–195.

20.

Thompson, B., & Vacha-Haase, T. (2000). Psychometrics is datametrics: The test is not reliable. Educational and Psychological Measurement, 60, 174–195.

21.

Yun, J., & Ulrich, D. (2002). Estimating measurement validity: A tutorial. Adapted Physical Activity Quarterly, 19, 32–47.

22.

Herdman, M., Fox- Rushby, J., & Badia, X. (1997). ‘Equivalence’ and the translation and adaptation of health-related quality of life questionnaires. Quality of Life Research, 6, 237–247.PubMedCrossRef

23.

Global strategy for asthma management and prevention. Global initiative for asthma (GINA) 2006. Retrieved March 8, 2007 from http://www.ginasthma.org

24.

Borg, G. V. (1982). Psychological bases of perceived exertion. Medicine and Science in Sports and Exercise, 14, 377–381.PubMed

25.

Pfeifer, K. A., Pivarnik, J. M., Womack, C. J., Reeves, M. J., & Malina, R. M. (2002). Reliability and validity of the Borg and OMNI rating of perceived exertion scales in adolescent girls. Medicine and Science in Sports and Exercise, 34, 2057–2061.CrossRef

26.

Thomas, J., & Nelson, J. (1996). Research methods in physical activity. Champaign: Human Kinetics.

27.

Pedhazur, E., & Pedhazur-Schmelkin, L. (1991). Measurements, design, and analysis: An integrated approach. Hillsdale: Erlbaume.

28.

Gill, D., & Deeter, T. (1988). Development of the sport orientation questionnaire. Research Quαrterly, 59, 191–202.

29.

Bentler, P. M. (1995). EQS structural equations program manual. Los Angeles: BMDP Statistical Software.

30.

Hoyle, H., & Panter, T. (1995). Writing about structural equation models. In R. H. Hoyle (Ed.), Structural equation modelling: Concepts, issues and applications (pp. 158–176). Thousand Oaks: Sage.

31.

Skordilis, E. K., Sherrill, C., Yilla, A., Koutsouki, D., & Stavrou, N. A. (2002). Use of the sport orientation questionnaire with wheelchair athletes: examination of evidence of validity. Perceptual and Motor Skills, 95, 197–207.PubMed

32.

Bentler, P. M., & Bonett, G. (1980). Significance tests and goodness of fit in the analysis of covariance structures. Psychological Bulletin, 88, 588–606.

33.

Byrne, M. A. (1989). A primer of LISREL: Basic applications and programming for confirmatory factor analytic models. New York: Springer-Verlag.

34.

Tabachnick, B. G., & Fidell, L. S. (1998). Using multivariate statistics. New York: Harper Collins.

35.

Jöreskog, K., & Sorbom, D. (1993). LISREL 8: Structural modeling with the SIMPLIS command language. Hillsdale: Erlbaum.

36.

Steinger, J. H. (1990). Structural model evaluation and modification: An interval estimation approach. Multivariate Behavioural Research, 25, 173–180.CrossRef

37.

Hu, I., & Bentler, P. M. (1999). Cut-off criteria for the fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modelling, 6, 1–55.CrossRef

38.

Hair, J. F., Anderson, R. E., Tatham, R. L., & Black, W. C. (1998). Multivariate data analysis. Upper Saddle River: Prentice-Hall International.

39.

Mardia, V. (1970). Measures of multivariate skewness and kurtosis with applications. Biometrics, 57, 519–530.CrossRef

40.

Safrit, M. J. (1990). Introduction to measurement in physical education and exercise science. Boston: Times Mirror/Mosby: College Publishing.

41.

Stevens, J. (1996). Applied multivariate statistics for the social sciences. New Jersey: Lawce Erlbaum Associates.

42.

Bentler, P. M., & Chou, C. P. (1987). Practical issues in structural modelling. Sociological Methods and Research, 16, 78–117.CrossRef

43.

Juniper, E. F., Guyatt, G. H., Cox, F. M., Ferrie, P. J., & King, D. R. (1999). Development and validation of the mini asthma quality of life questionnaire. European Respiratory Journal, 14, 32–38.PubMedCrossRef

44.

Juniper, E. F., Wisniewski, M. E., Cox, F. M., Emmett, A. H., Nielsen, K. E., & O’Byrne, P. M. (2004). Relationship between quality of life and clinical status in asthma: A factor analysis. European Respiratory Journal, 23, 287–291.PubMedCrossRef

45.

Juniper, E. F., O’Byrne, P. M., Ferrie, P. J., King, D. R., & Roberts, J. N. (2000). Measuring asthma control, clinic questionnaire or daily diary? American Journal of Respiratory Critical Care Medicine, 162, 1330–1334.

46.

Babiniotis G. (2002). Dictionary of the New Greek language. Athens: E.P.E. Center L.

47.

Guillemin, F., Bombardier, C., & Beaton, D. (1993). Cross-cultural adaptation of health-related quality of life measures: Literature review and proposed guidelines. Journal of Clinical Epidemiology, 46, 1417–1432.PubMedCrossRef

48.

Juniper, E. F. (2005). Assessing asthma quality of life: Its role in clinical practice. Breathe, 1, 193–204.

49.

Hays, R. D., & Hadorn, D. (1992). Responsiveness to change: An aspect of validity, not a separate dimension. Quality of Life Research, 1, 73–75.PubMedCrossRef

50.

Feinstein, A. R. (1983). An additional basic science for clinical medicine: IV. The development of clinimetrics. Annals of International Medicine, 99, 843–848.

51.

Hyland, M. E. (2003). A brief guide to the selection of quality of life instrument. Health and Quality of Life Outcomes, 1, 1–5.CrossRef

52.

Schmidt, S., & Bullinger, M. (2003). Current issues in cross-sectional quality of life instrument. Archives of Physical Medicine and Rehabilitation, 84, 29–34.CrossRef

Titel: An 18-item standardized Asthma Quality of Life Questionnaire-AQLQ(S)
verfasst von: Eirini Grammatopoulou
Emmanouil Skordilis
Dimitra Koutsouki
George Baltopoulos
Publikationsdatum: 01.03.2008
Verlag: Springer Netherlands
Erschienen in: Quality of Life Research / Ausgabe 2/2008
Print ISSN: 0962-9343
Elektronische ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-007-9297-y

Springer Medizin

Abstract

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

Weitere Artikel der Ausgabe 2/2008

Measuring health-related quality of life in Greek children: psychometric properties of the Greek version of the Pediatric Quality of Life InventoryTM 4.0 Generic Core Scales

Validity and reliability of Pediatric Quality of Life Inventory for 2- to 4-year-old and 5- to 7-year-old Turkish children

Validation of the Japanese version of EORTC QLQ-CR38

Validity, reliability, and responsiveness of the Kansas City Cardiomyopathy Questionnaire in anemic heart failure patients

Health-related quality of life (HRQoL) domains most valued by urban IsiXhosa-speaking people

Nonparametric IRT analysis of Quality-of-Life Scales and its application to the World Health Organization Quality-of-Life Scale (WHOQOL-Bref)