期刊
CONTRACEPTION
卷 81, 期 1, 页码 16-21出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.contraception.2009.07.004
关键词
Contraceptive patch; Oral contraceptives; Venous thromboembolism
资金
- Johnson & Johnson Pharmaceutical Research & Development, LLC.
Background: Concern has been raised that the risk of venous thromboembolism (VTE) in users of the ORTHO EVRA (R) patch is higher compared to users of oral contraceptives (OCs). Study Design: We identified idiopathic cases of VTE and controls, matched on age and index date, from among women in the United States PharMetrics/IMS and MarketScan databases who were current users of the patch or levonorgestrel-containing OCs with 30 mcg of ethinyl estradiol. We calculated odds ratios (ORs) and 95% confidence intervals (CIs). Results: The ORs (95% CI) for VTE in users of the patch compared to levonorgestrel-containing OCs were 2.0 (0.9-4.1) and 1.3 (0.8-2.1) in the PharMetrics and MarketScan databases, respectively. ORs (95% C) restricted to women aged 39 years or younger were 1.4 (0.6-3.0) and 1.2 (0.7-2.0), respectively. Conclusion: These results provide evidence that the risk of idiopathic VTE in users of the patch is not materially different than that of users of levonorgestrel-containing OCs in women aged 39 years or younger. We cannot rule out some increase in the risk in women aged 40 years or older. (C) 2010 Elsevier Inc. All rights reserved.
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