NPR : News

Filed Under:

HPV Vaccine Doesn't Raise Risk Of Blood Clots, Study Finds

The vaccine for human papillomavirus has been controversial from the get-go, partly because it protects against a virus that causes cervical cancer and is spread by sexual activity.

The vaccine's safety has also been contested, with media celebrities like Katie Couric publicizing rare reports of people who became ill or died after receiving the vaccine, even though there was no evidence that the vaccine caused the problems.

Scientists were particularly concerned about the risk of potentially deadly blood clots, because two studies had found elevated risk in people who had the HPV vaccine.

But a huge study that involved more than half a million Danish women and girls has found no increased risk of blood clots. The study was published Tuesday in JAMA, the journal of the American Medical Association.

The researchers looked at the medical records of 500,345 women and girls in Denmark, aged 10 through 44, who had had the HPV vaccine. Of them, 4,375 had been diagnosed with a blood clot, or venous thromboembolisms, from October 2006 through July 2013. Twenty percent of those women had gotten the vaccine during that time.

To see if there was an association between the vaccine and the blood clot, the researchers looked at the 44 days after the women got the shot, which is considered the time of highest risk. They didn't have a higher risk of clots then.

The researchers adjusted the data to account for women who were using birth control pills, which does increase the risk of blood clots.

The federal Centers for Disease Control and Prevention recommends that both boys and girls get the HPV vaccine starting at age 11 or 12.

Copyright 2014 NPR. To see more, visit http://www.npr.org/.

NPR

Cult Survivor Documents 2 Decades Inside 'Holy Hell'

Will Allen directed the documentary Holy Hell, which depicts his experience as a videographer and member of The Buddhafield cult. Allen used his own footage, as well as his interviews with other former members, to make this documentary.
NPR

Evaporated Cane Juice? Puh-leeze. Just Call It Sugar, FDA Says

Companies cultivating a healthful image often list "evaporated cane juice" in their products' ingredients. But the FDA says it's really just sugar, and that's what food labels should call it.
WAMU 88.5

The Politics Hour - May 27, 2016

Congress votes to override DC's 2013 ballot initiative on budget autonomy. Virginia governor faces a federal investigation over international finance and lobbying rules. And DC, Maryland and Virginia move to create a Metro safety oversight panel.

NPR

After Departure Of Uber, Lyft In Austin, New Companies Enter The Void

Earlier this month, voters in Austin, Texas, rejected an effort to overturn the city's rules for ride-hailing companies. Uber and Lyft tried to prevent fingerprinting of their drivers, and now both have left town. A few other ride-share companies have popped up to help fill the void. NPR explores how people are getting around town without Uber and Lyft.

Leave a Comment

Help keep the conversation civil. Please refer to our Terms of Use and Code of Conduct before posting your comments.