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Email: "Study Finds Half of Women on “Birth Control Shot” Suffer Bone Problems"

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BY LifeSiteNews.com GALVESTON, Texas, December 21, 2009 (LifeSiteNews.com) - Nearly half of women using depot medroxyprogesterone acetate (DMPA), commonly known as the birth control shot, will experience high bone mineral density (BMD) loss in the hip or lower spine within two years of beginning the contraceptive, according to researchers at the University of Texas Medical Branch at Galveston.The study, reported in the January 2010 issue of Obstetrics and Gynecology, was the first to show that women on the birth control shot who smoke, have low levels of calcium intake and never gave birth are at the highest risk for BMD loss. The researchers also found that high risk women continued to experience significant losses in BMD during the third year of the use of the contraceptive injection, especially in the hip - the most common facture site in elderly women.DMPA is an injected contraceptive administered to patients every three months. According to the American College of Obstetricians and Gynecologists, more than two million American women use the birth control shot, including approximately 400,000 teens. DMPA is relatively inexpensive compared with some other forms of contraception and doesn't need to be administered daily, which contributes to its popularity.The study followed 95 DMPA users for two years. In that time, 45 women had at least five percent BMD loss in the lower back or hip. A total of 50 women had less than five percent bone loss at both sites during the same period.By and large, BMD loss was higher in women who were current smokers, had never given birth and had a daily calcium intake of 600 mg or less - far below the recommended amounts. Moreover, BMD loss substantially increased among the women with all three risk factors. The researchers followed 27 of the women for an additional year and found that those who experienced significant BMD loss in the first two years continued to lose bone mass. http://www.lifesitenews.com/news/study-finds-half-of-women-on-birth-control-shot-suffer-bone-problems/

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