Tuesday, July 26, 2016

Babies fed directly from breast may be at less risk for ear infections


Public Release: 24-May-2016
Babies fed directly from breast may be at less risk for ear infections
Breast milk may also thwart diarrhea in first 12 months of life
Nationwide Children's Hospital

Feeding at the breast may be healthier than feeding pumped milk from a bottle for reducing the risk of ear infection, and feeding breast milk compared with formula may reduce the risk of diarrhea, according to a recent study by researchers at The Research Institute at Nationwide Children's Hospital.

"We certainly don't want women to stop pumping because there are not adequate data or guidelines about whether pumped breast milk is an equivalent substitute for feeding at the breast, so more research needs to be done," said Sarah Keim, PhD, senior author of the study and principal investigator in the Center for Biobehavioral Health in The Research Institute at Nationwide Children's.

After accounting for demographic and other related factors, researchers found that one month of feeding at the breast was associated with a 4 percent reduction in the odds of ear infection, and they found a 17 percent reduction in the odds for infants fed at the breast for six months of infancy Among infants who were fed only breast milk, either at the breast and/or pumped breast milk from a bottle, for the first six months, the odds of experiencing an ear infection increased by approximately 14 percent for infants fed pumped milk for 1 month and by 115 percent for infants fed with pumped milk for 6 months.

"While it is not completely clear why ear infections may be related to bottle feeding, it could be because bottles can create a negative pressure during feeding. This negative pressure is then transferred from the bottle to the middle ear of the infant during feedings, which may precipitate ear infections," explained Dr. Keim.

Infants fed with breast milk by either mode for six months had an approximately 30 percent reduced risk of diarrhea. Diarrhea risk was reduced by 25 percent for infants fed any breast milk for six months, and by 26 percent for infants fed at the breast for 6 months, while infants fed formula for 6 months had a 34% increased risk of experiencing diarrhea.

According to the researchers, this finding suggests that the substance fed, rather than the mode of feeding, may underlie differences in risk of diarrhea.


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