Abstract
The Study on COgnition and Prognosis in the Elderly (SCOPE) was a multinational, randomised, double-blind study to assess the effects of candesartan 8–16 mg daily on cardiovascular events and cognitive function in elderly patients (aged 70–89 years) with mild to moderate hypertension. A total of 4937 patients were randomised to candesartan or placebo with other antihypertensive drugs (mostly diuretics, beta-blockers, and calcium antagonists) added as needed to control blood pressure. Only 16% of the patients in the control group received placebo alone. The mean follow-up was 3.7 years. The aim of this health-related quality of life (HRQL) substudy analysis was to investigate changes in HRQL during antihypertensive treatment, and possible differences in patients receiving candesartan-based or other antihypertensive treatment. Three validated HRQL instruments were used: the Psychological General Well-being (PGWB) Index, the Subjective Symptoms Assessment Profile (SSA-P), and the EuroQoL Health Utility Index (EuroQoL). The HRQL was generally good at baseline and well preserved during follow-up in the presence of substantial blood pressure reductions in both treatment groups. Several of the observed changes in score from baseline to last visit favoured candesartan-based compared to control treatment, particularly the changes in PGWB Anxiety (–0.5 vs −1.0, P=0.01), PGWB Positive well-being (–0.8 vs −1.1, P=0.04), SSA-P Cardiac symptoms (0.03 vs 0.10, P=0.03), and EuroQoL Current health (−3.1 vs −5.3, P=0.008). This favourable result may be related to the somewhat lower blood pressure associated with candesartan-based treatment. In conclusion, there should be no reason to withhold modern antihypertensive therapy in elderly patients due to concerns for a negative effect on HRQL.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 digital issues and online access to articles
$119.00 per year
only $9.92 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Falk M . Compliance with treatment and the art of medicine. Am J Cardiol 2001; 88: 668–669.
Testa MA, Simonson DC . Assesment of quality-of-life outcomes. N Engl J Med 1996; 334: 835–840.
Wiklund I . Aspects of quality of life in gastrointestinal disease. Some methodological issues. Scand J Gastroenterol 1995; 30(Suppl 208): 129–132.
Ren XS et al. Identifying patient and physician characteristics that affect compliance with antihypertensive medications. J Clin Pharmacol Ther 2002; 27: 47–56.
Waeber B, Burnier M, Brunner HR . Compliance with antihypertensive therapy. Clin Exp Hypertens 1999; 21: 973–985.
Wallander AM, Dimenäs E, Svärdsudd K, Wiklund I . Evaluation of three methods of symptom reporting in a clinical trial of felodipine. Eur J Clin Pharmacol 1991; 41: 187–196.
Belcher G et al. Candesartan cilexetil: safety and tolerability in healthy volunteers and patients with hypertension. J Hum Hypertens 1997; 11(Suppl 2): S85–S89.
Easthope SE, Jarvis B . Candesartan cilexetil: an update of its use in essential hypertension. Drugs 2002; 62: 1253–1287.
Malmqvist K, Kahan T, Dahl M . Angiotensin II type 1 (AT1) receptor blockade in hypertensive women: benefits of candesartan cilexetil versus enalapril or hydrochlorothiazide. Am J Hypertens 2000; 13: 504–511.
Hansson L et al. Study on COgnition and Prognosis in the Elderly (SCOPE). Blood Press 1999; 8: 177–183.
Lithell H et al. The Study on COgnition and Prognosis in the Elderly (SCOPE). Principal results from a randomised double-blind intervention trial. J Hypertens 2003; 21: 875–886.
Dupuy HJ . The Psychological General Well-being (PGWB) Index. In: Wenger NK, Mattson ME, Furberg CF, Elinson J (eds). Assessment of Quality of Life in Clinical Trials of Cardiovascular Therapies. Le Jacq Publishing Inc: New York, 1984, pp 170–183.
Dimenäs E, Dahlöf C, Olofsson B, Wiklund I . An instrument for quantifying subjective symptoms among untreated and treated hypertensives: development and documentation. J Clin Res Pharmacoepidemiol 1990; 4: 205–217.
Feeny D, Furlong W, Boyle M, Torrance GW . Multi-attribute health status classification systems. Health Utilities Index. Pharmacoeconomics 1995; 7: 490–502.
Torrance GW, Furlong W, Feeny D, Boyle M . Multi-attribute preference functions. Health Utilities Index. Pharmacoeconomics 1995; 7: 503–520.
Degl'Innocenti A et al. Cognitive function and health-related quality of life in elderly patients with hypertension—baseline data from the Study on COgnition and Prognosis in the Elderly (SCOPE). Blood Press 2002; 11: 157–165.
Hjemdahl P, Wiklund Ik . Quality of life on antihypertensive drug therapy: scientific end-point or marketing exercise? J Hypertens 1992; 10: 1437–1446.
Steiner SS et al. Antihypertensive therapy and quality of life: a comparison of atenolol, captopril, enalapril and propranolol. J Hum Hypertens 1990; 4: 217–225.
Wiklund I, Halling K, Ryden-Bergsten T, Fletcher A . Does lowering the blood pressure improve the mood? Quality-of-life results from the hypertension optimal treatment (HOT) study. Blood Press 1997; 6: 357–364.
Neaton JD et al. Treatment of mild hypertension study. Final results. Treatment of Mild Hypertension Study Research Group [comment]. JAMA 1993; 270: 713–724.
Van Hoof R, Amery A, Fagard R, Staessen J . Quality of life during treatment of hypertensive patients with diuretics. Acta Cardiol 1990; 45: 393–401.
Peart WS et al. Adverse reactions to bendrofluazide and propranolol for the treatment of mild hypertension. Report of Medical Research Council Working Party on Mild to Moderate Hypertension. Lancet 1981; 2: 539–543.
Hansson L . The hypertension optimal treatment study (the HOT study). Blood Press 1993; 2: 62–68.
Juniper EF, Guyatt GH, Willan A, Griffith LE . Determining a minimal important change in a disease-specific Quality of Life Questionnaire. J Clin Epidemiol 1994; 47: 81–87.
Hays RD, Woolley JM . The concept of clinically meaningful difference in health-related quality-of-life research. How meaningful is it? Pharmacoeconomics 2000; 18: 419–423.
Man-Son-Hing M et al. Warfarin for atrial fibrillation. The patient's perspective. Arch Intern Med 1996; 156: 1841–1848.
Beaton DE, Boers M, Wells GA . Many faces of the minimal clinically important difference (MCID): a literature review and directions for future research. Curr Opin Rheumatol 2002; 14: 109–114.
Juniper EF . Quality of life questionnaires: does statistically significant=clinically important? [letter; comment]. J Allergy Clin Immunol 1998; 102: 16–17.
Jaeschke R, Singer J, Guyatt GH . Measurement of health status. Ascertaining the minimal clinically important difference. Control Clin Trials 1989; 10: 407–415.
Juniper EF et al. Measuring quality of life in children with asthma. Qual Life Res 1996; 5: 35–46.
Juniper EF et al. Measuring quality of life in the parents of children with asthma. Qual Life Res 1996; 5: 27–34.
Juniper EF, Guyatt GH, Griffith LE, Ferrie PJ . Interpre-tation of rhinoconjunctivitis quality of life questionnaire data. J Allergy Clin Immunol 1996; 98: 843–845.
Murawski MM, Miederhoff PA . On the generalizability of statistical expressions of health related quality of life instrument responsiveness: a data synthesis. Qual Life Res 1998; 7: 11–22.
Guyatt GH et al. Interpreting treatment effects in randomised trials. BMJ 1998; 316: 690–693.
Acknowledgements
We thank all patients who participated in the study, all investigators and committee members, as well as all monitoring and coordinating staff at AstraZeneca. We also thank Jonas Carlsson for the statistical analysis. We are indebted to AstraZeneca for sponsoring the SCOPE study.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Degl'Innocenti, A., Elmfeldt, D., Hofman, A. et al. Health-related quality of life during treatment of elderly patients with hypertension: results from the Study on COgnition and Prognosis in the Elderly (SCOPE). J Hum Hypertens 18, 239–245 (2004). https://doi.org/10.1038/sj.jhh.1001657
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.jhh.1001657
Keywords
This article is cited by
-
Development and validation of the systemic lupus erythematous scale amongst the system of quality of life instruments for chronic diseases QLICD-SLE (V2.0)
Health and Quality of Life Outcomes (2023)
-
Development and validation of a disease-specific quality of life measure QLICD-HY (V2.0) for patients with hypertension
Scientific Reports (2023)
-
The Renin Angiotensin System as a Therapeutic Target in Traumatic Brain Injury
Neurotherapeutics (2023)
-
Impact of COVID-19 emergency on the psychological well-being of susceptible individuals
Scientific Reports (2022)
-
Health-related quality of life in blood pressure control and blood lipid-lowering therapies: results from the CHIEF randomized controlled trial
Hypertension Research (2019)