LONDON -- In the first major global review of violence against women, a series of reports released Thursday found that about a third of women have been physically or sexually assaulted by a former or current partner.

The head of the World Health Organization, Margaret Chan, called it "a global health problem of epidemic proportions," and other experts said screening for domestic violence should be added to all levels of health care.

Among the findings: 40 percent of women killed worldwide were slain by an intimate partner, and being assaulted by a partner was the most common kind of violence experienced by women.

Researchers used a broad definition of domestic violence, and in cases where country data was incomplete, estimates were used to fill in the gaps. WHO defined physical violence as being slapped, pushed, punched, choked or attacked with a weapon.

Sexual violence was defined as being physically forced to have sex, having sex for fear of what the partner might do and being compelled to do something sexual that was humiliating or degrading.

WHO issued guidelines for authorities to spot problems earlier and said all health workers should be trained to recognize when women may be at risk and how to respond appropriately.

The report was based largely on studies from 1983 to 2010. According to the United Nations, more than 600 million women live in countries where domestic violence is not considered a crime.

The rate of domestic violence against women was highest in Africa, the Middle East and Southeast Asia, where 37 percent of women experienced physical or sexual violence from a partner at some point in their lifetimes. The rate was 30 percent in Latin America and 23 percent in North America. In Europe and Asia, it was 25 percent.

In countries like India, Stoeckl said "honor killings," where women are sometimes murdered over dowry disputes or perceived offenses like infidelity to protect the family's reputation, add to the problem.

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U.S. cuts child vaccines ... Malverne hit-and-run crash ... Kids celebrate Three Kings Day Credit: Newsday

Updated 23 minutes ago Suozzi visits ICE 'hold rooms' ... U.S. cuts child vaccines ... Coram apartment fire ... Out East: Custer Institute and Observatory

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