Abstract
This paper reports our experience with the use of an improved self-administered questionnaire for assessing quality of life (QOL) after acute myocardial infarction. The modified questionnaire significantly increased the proportion of patients able to answer all questions from 84%–92%. The additional questions in the improved questionnaire increased the total variance explained by the Emotional, Physical and Social QOL factors from 65.8%–66.5%. Internal consistency and construct validity were assessed and found to be high. Overall, we have found that this improved questionnaire is easy to administer and that it possesses desirable properties of validity and reliability.
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Australian Institute of Health and Welfare. Australia's health 1994: the fourth biennial report of the Australian Institute of Health and Welfare. Canberra: AGPS 1994.
Mark DB, Naylor CD, Hlatky MA et al. Use of medical resources and quality of life after acute myocardial infarction in Canada and the United States. N Engl J Med 1994 Oct 27; 331: 1130–1135.
INCLEN Multicentre Collaborative Group. Risk factors for cardiovascular disease in the developing world. A Mulicentre collaborative study in the International Clinical Epidemiology Network (INCLEN). J Clin Epidemiol 1992; 45(8): 841–847.
Guyatt GH, Feeny DH, Patrick DL. Measuring health-related quality of life. Ann Intern Med 1993 Apr 15; 118(8): 622–629.
Fitzpatrick R, Fletcher A, Gore S, Jones D, Spiegelhalter D, Cox D. Quality of life measures in health care. I: Applications and issues in assessment. BMJ 1992 Oct 31; 305(6861): 1074–1077.
Guyatt GH, Bombardier C, Tugwell PX. Measuring disease-specific quality of life in clinical trials. Can Med Assoc J 1986 Apr 15; 134(8): 889–895.
Wenger NK, Mattson ME, Furberg CD, Elinson J. Assessment of quality of life in clinical trials of cardiovascular therapies. Am J Cardiol 1984; 54: 908–913.
Lim L L-Y, Valenti LA, Knapp JC et al. A self-administered quality-of-life questionnaire after acute myocardial infarction. J Clin Epidemiol 1993; 46(11): 1249–1256.
Hillers TK, Guyatt GH, Oldridge N et al. Quality of life after myocardial infarction. J Clin Epidemiol 1994; 47(11): 1287–1296.
Heller RF, Knapp J, Valenti L, Dobson A. Secondary prevention after acute myocardial infarction. Am J Cardiol 1993; 72: 759–762.
Heller RF, Lim L, Valenti L, Knapp J. A randomized trial of community based counselling after hospitalization with Ischaemic heart disease. (submitted for publication)
Oldridge N, Guyatt G, Jones N et al. Effects on quality of life with comprehensive rehabilitation after acute myocardial infarction. Am J Cardiol 1991; 67: 1084–1089.
Kleinbaum DG, Kupper LL, Muller KE. Applied regression analysis and other multivariable methods: 2nd Edition. Boston Mass: PWS-KENT, 1988.
Cronbach L. Coefficient alpha and the internal structure of tests. Psychometkria 1951; 16: 297–334.
Wilklund I, Herlitz J, Hjalmarson A. Quality of life five years after myocardial infarction. Eur Heart J 1989; 10: 464–472.
Baum FE, Cooke RD. Community-health needs assessment: use of the Nottingham health profile in an Australian study. Med J Aust 1989; 150: 581–590.
CASS Principal Investigators and their associates. Coronary artery surgery study (CASS): A randomised trial of coronary artery bypass surgery. Circulation 1983; 68: 951–960.
SAS Institute Inc., SAS/STAT User's Guide, Version 6, Fourth Edition, Volume 2. Cary, NC: SAS Institute Inc., 1989.
Streiner DL, Norman GR. Health Measurement Scales—A practical guide to their development and use. New York: Oxford University Press, 1991.
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This work was supported by a grant from the National Health and Medical Research Council of Australia (NH&MRC).
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Valenti, L., Lim, L., Heller, R.F. et al. An improved questionnaire for assessing quality of life after acute myocardial infarction. Qual Life Res 5, 151–161 (1996). https://doi.org/10.1007/BF00435980
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DOI: https://doi.org/10.1007/BF00435980