LONDON (AP) - A British health agency's analysis finds that having an abortion does not increase a woman's chance of developing mental health problems such as anxiety and depression.

But Dr. Tim Kendall, the director of the U.K.'s National Collaborating Centre for Mental Health, says the research does raise a warning that officials must address the problem of unwanted pregnancy.

About 11 to 12 percent of women in general suffer from mental health issues. Kendall says the figure rises to about one-third in women with unwanted pregnancies, but does not seem to increase for women who end unwanted pregnancies.

Kendall said it was possible women with mental health problems after an unwanted pregnancy were at greater risk of getting pregnant or that an unwanted pregnancy worsened their mental health.

The review was released Friday Britain's Academy of Medical Royal Colleges and the Royal College of Psychiatrists. It was paid for by the U.K.'s department of health.

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