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BALTIMORE--Lactation may protect against bone loss in teenaged mothers who breast-feed their infants, Dr. Caroline Chantry said at the annual meeting of the Pediatric Academic Societies.
Using data on women aged 20-25, years from the third National Health and Nutrition Examination Survey (NHANES-III) for 1988 through 1994, Dr. Chantry and her associates compared bone mineral density (BMD) measurements in the femur in 94 women who were teenagers when they breast-fed their infants about 3 years earlier, with 151 who had babies as teenagers but had not breast-fed 3 years earlier and 418 nulliparous women. No women who were currently breast-feeding or were pregnant were included. BMD was measured with dual-energy x-ray absorptiometry.
The women who as teenagers had breast-fed their infants had BMD values 5%-7% higher in all five areas of the femur measured, compared with those who as teenagers had not breast-fed their infants, reported Dr. Chantry, a pediatrician at the University of California, Davis.
The BMD values in the teens who undertook breast-feeding of their infants were ...
Source: HighBeam Research, Teens who breast-feed babies boost own BMD. (May Protect Against Bone...