New Danish Study Links Blood Clot Risk to NuvaRing

New Danish Study Links Blood Clot Risk to NuvaRing

In a recent study published by the British Medical Journal on May 10th, 2012, researchers confirmed that NuvaRing and other Combined Hormonal Contraceptives (CHCs) produced a 6.5 times increased risk of confirmed venous thrombosis in comparison to non-users of hormonal contraception of the same age. Women who used vaginal rings were shown to have a 90% increased likelihood of developing blood clots than did combined oral contraceptives containing levonorgestrel. The findings in the study included data related to Venous Thrombosis in Danish women aged 15-49. The researchers suggest that women “use combined oral contraceptives with levonorgestrel or norgestimate, rather [than] transdermal patches or vaginal rings.” The Danish study was conducted in response to previously published findings from the U.S. Food and Drug Administration that cited dangerous side affects for vaginal ring users. In comparison to women using oral contraceptives, NuvaRing users exhibited a 56% higher risk of Deep Vein Thrombosis and Pulmonary Embolism in comparison to other birth control pills.


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