Wealthy countries have seen a dramatic drop in abortions in the past 25 years but poorer developing nations have had only a slight decline.
Restrictive laws do little to lower abortion rates and are more likely to force people into having unsafe terminations, Reuters reports, citing a study by the World Health Organization (WHO) and Guttmacher Institute.
On average 56 million abortions took place each year worldwide from 2010 to 2014.
The findings highlight a lack in poorer countries of access to modern contraception methods such as the pill, implants and coils, researchers said.
“In developing countries … family planning services do not seem to be keeping up with the increasing desire for smaller families,” said Gilda Sedgh, who led the research at the Guttmacher Institute in the United States.
More than 80 percent of unintended pregnancies are in women who are not getting the contraception they need, she said, “and many unwanted pregnancies end in abortion”.
She said that by contrast, the downward trend in abortion rates in richer countries is largely due to “increased use of modern contraception that has given women greater control over the timing and number of children they want”.
Published in The Lancet medical journal, the study used abortion data from nationally representative surveys, official statistics and other published and unpublished studies, along with information on the level of unmet need for contraception and the prevalence of contraceptive use, by type of method.
The researchers then used a statistical model to estimate levels and trends in abortion incidence for all major world regions and subregions from 1990 to 2014.
The researchers found that between 1990 and 2014, the developed world’s annual abortion rate per 1,000 women of childbearing age (15-44 years) dropped from 46 to 27, mainly as a result of the rate in Eastern Europe more than halving as modern contraceptive methods became more widely available.
Yet in poorer countries, the abortion rate remained virtually unchanged, dropping from 39 to 37.
The study also found that termination rates were similar in countries where abortion is legal and where it is prohibited.
Where abortion is prohibited altogether, or allowed only to save a woman’s life, the rate was 37 abortions per 1,000 women, compared with 34 per 1,000 where it is legal.
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