Abortion more common where it's illegal: Where are rates highest?

(CBS/AP) Abortion rates are highest where the procedure is illegal, according to a new study. The study also found nearly half of all abortions worldwide are unsafe, with the vast majority of unsafe abortions occurring in developing countries.

PICTURES - Abortion around the world: Where are rates highest?

As for the overall global abortion rate, it remained virtually unchanged from 2003 to 2008, at about 28 abortions per 1,000 women aged 15 to 4 -  a total of about 43.8 million abortions - the study found. The rate had previously been dropping since 1995.

The new global abortion study - that's published in the Jan. 19 issue of The Lancet - is from the U.S.-based Guttmacher Institute and the World Health Organization. Researchers found a link between higher abortion rates and regions with more restrictive legislation, such as in Latin America and Africa. They also found that 95 to 97 percent of abortions in those regions were unsafe.

Experts couldn't say whether more liberal laws led to fewer procedures, but said good access to birth control in those countries resulted in fewer unwanted pregnancies.

About 47,000 women died from unsafe abortions in 2008, and another 8.5 million women had serious medical complications. Almost all unsafe abortions were in developing countries, where family planning and contraceptive programs have mostly levelled off.

"An abortion is actually a very simple and safe procedure," Gilda Sedgh, study author and senior researcher at the Guttmacher Institute, said. "All of these deaths and complications are easily avoidable."

The proportion of unsafe abortions rose from 44 percent in 1995 to 49 percent in 2008, researchers found. Sedgh acknowledged it was difficult to get an accurate number for unsafe abortions in particular and described their estimates as modest.

They used sources including official statistics, national surveys, and hospital records. To account for unreported abortions, they made adjustments and relied on information from other kinds of studies, expert assessments, and surveys of women.

The authors defined unsafe abortion as any procedure done by people lacking needed skills or in places that don't meet minimal medical standards. Sedgh said some women in Africa resort to using broken soda bottles or taking strong doses of medicines or herbal drugs to induce abortions.

"It is precisely where abortion is illegal that it must become safer," wrote Beverly Winikoff and Wendy R. Sheldon of the Gynuity Health Projects in New York, in an accompanying commentary.

Experts said increasing birth control options for women in poor countries, like providing long-acting implants, would make a big difference.

"Wherever we have made better contraception available in the countries where we work, hundreds of women will walk hours to get it," said Dana Hovig, CEO of Marie Stopes International, a family planning organization. He was not connected to the study.

Which regions of the world have the highest abortion rates? Keep clicking to find out: