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Non-steroidal anti-inflammatory drugs and risk of first hospital admission for heart failure in the general population
  1. C Huerta1,
  2. C Varas-Lorenzo2,
  3. J Castellsague2,
  4. L A García Rodríguez1
  1. 1CEIFE, Spanish Center for Pharmacoepidemiologic Research, Madrid, Spain
  2. 2Pfizer Global Epidemiology, Safety & Risk Management, Barcelona, Spain
  1. Correspondence to:
    Dr Consuelo Huerta
    Centro Español de Investigación Farmacoepidemiológica (CEIFE), Almirante 28; 2°, 28004 Madrid, Spain; chuerta{at}ceife.es

Abstract

Objectives: To estimate the risk of a first hospital admission for heart failure (HF) associated with the use of non-steroidal anti-inflammatory drugs (NSAIDs).

Methods: Cohort study with a nested case–control analysis based on the UK General Practice Research Database. Overall, 1396 cases of first hospital admission for non-fatal HF were identified (January 1997 to December 2000) and compared with a random sample of 5000 controls.

Results: The incidence rate was 2.7/1000 person years. Prior clinical diagnosis of HF was the main independent risk factor triggering a first HF hospitalisation (relative risk 7.3, 95% confidence interval (CI) 6.1 to 8.8). The risk of a first hospital admission for HF associated with current use of NSAIDs was 1.3 (95% CI 1.1 to 1.6) after controlling for major confounding factors. No effects of dose and duration were found. The relative risk in current users of NSAIDs with prior HF was 8.6 (95% CI 5.3 to 13.8) compared with patients who did not use NSAIDs and without prior clinical diagnosis of HF.

Conclusion: Use of NSAIDs was associated with a small increase in risk of a first hospitalisation for HF. In patients with prior clinical diagnosis of HF, the use of NSAIDs may lead to worsening of pre-existing HF that triggers their hospital admission. This increased risk, although small, may result in considerable public health impact, particularly among the elderly.

  • ACE, angiotensin-converting enzyme
  • GPRD, General Practice Research Database
  • HF, heart failure
  • MHRA, Medicines and Healthcare products Regulatory Agency
  • NSAID, non-steroidal anti-inflammatory drug
  • RR, relative risk
  • S, synergy index

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Footnotes

  • Published Online First 22 May 2006

  • This study was supported by a research grant from Pfizer.

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