Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • News & Views
  • Published:

Hypertension

Meta-analyses: first-rank evidence or second-hand information?

On the basis of a meta-analysis of randomized studies assessing reductions in 24 h ambulatory blood pressure, investigators have concluded that hydrochlorothiazide is an inappropriate first-line drug for antihypertensive treatment. This conclusion has the potential to change current prescribing practice for patients with hypertension, but should meta-analyses be considered the ultimate level of evidence, particularly those based on a surrogate outcome?

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

References

  1. Messerli, F. H. et al. Antihypertensive efficacy of hydrochlorothiazide as evaluated by ambulatory blood pressure monitoring. A meta-analysis of randomized trials. J. Am. Coll. Cardiol. 57, 590–600 (2011).

    Article  CAS  Google Scholar 

  2. Last, J. M. & Abramson, J. H. (Eds) A dictionary of epidemiology, 3rd edn (Oxford University Press, New York, 1995).

    Google Scholar 

  3. Zanchetti, A. et al. Different effects of antihypertensive regimens based on fosinopril or hydrochlorothiazide with or without lipid lowering by pravastatin on progression of asymptomatic carotid atherosclerosis: principal results of PHYLLIS, a randomized double-blind trial. Stroke 35, 2807–2812 (2004).

    Article  CAS  Google Scholar 

  4. Parati, G. & Mancia, G. Office compared with ambulatory blood pressure in assessing response to antihypertensive treatment: a meta-analysis. J. Hypertens. 22, 435–445 (2004).

    PubMed  Google Scholar 

  5. MRC Working Party. Medical Research Council trial of treatment of hypertension in older adults: principal results. BMJ 304, 405–412 (1992).

  6. Hansson, L. et al. Effect of angiotensin-converting-enzyme inhibition compared with conventional therapy on cardiovascular morbidity and mortality in hypertension: the Captopril Prevention Project (CAPPP) randomised trial. Lancet 353, 611–616 (1999).

    Article  CAS  Google Scholar 

  7. Hansson, L. et al. Randomised trial of old and new antihypertensive drugs in elderly patients: cardiovascular mortality and morbidity: the Swedish Trial in Old Patients with Hypertension-2 study. Lancet 354, 1751–1756 (1999).

    Article  CAS  Google Scholar 

  8. Brown, M. J. et al. Morbidity and mortality in patients randomised to double-blind treatment with a long-acting calcium-channel blocker or diuretic in the International Nifedipine GITS study: Intervention as a Goal in Hypertension Treatment (INSIGHT). Lancet 356, 366–372 (2000).

    Article  CAS  Google Scholar 

  9. Wing, L. M. et al. A comparison of outcomes with angiotensin-converting-enzyme inhibitors and diuretics for hypertension in the elderly. N. Engl. J. Med. 348, 583–592 (2003).

    Article  CAS  Google Scholar 

  10. Black, H. R. et al. Principal results of the Controlled Onset Verapamil Investigation of Cardiovascular End Points (CONVINCE) trial. JAMA 289, 2073–2082 (2003).

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This manuscript has been prepared as one of the activities of the EC Network of Excellence InGenious HyperCare (contract LSHM-CT-2006-037,093). The author would like to thank Mrs D. Mihalich for secretarial help.

Author information

Authors and Affiliations

Authors

Ethics declarations

Competing interests

The author declares no competing financial interests.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zanchetti, A. Meta-analyses: first-rank evidence or second-hand information?. Nat Rev Cardiol 8, 249–251 (2011). https://doi.org/10.1038/nrcardio.2011.39

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nrcardio.2011.39

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing