September 16, 2011

Breastfeeding May Shield Against Sudden Infant Death Syndrome


Another article on my favorite subject. More benefits of breastfeeding!
Enjoy, Amber

Take the Quiz: Baby's First YearBy Steven Reinberg

HealthDay Reporter
MONDAY, June 13 (HealthDay News) --Breastfeeding appears to reduce the risk of SIDS by up to 73%, especially when babies are exclusively breastfed, a new study suggests.

Breast milk is widely considered the best food for infants, and studies have shown breastfeeding aids babies' development and reduces the risk of disease for both infants and their mothers. Now, there is more evidence that breastfeeding may reduce the risk of Sudden Infant Death Syndrome(SIDS), which claims the lives of about 2,300 infants a year in the United States, according to federal statistics.

 "Breastfeeding has many benefits for mothers' and infants' health," said lead researcher Dr. Fern R. Hauck, an associate professor of family medicine and public health at the University of Virginia in Charlottesville. "This study shows another important reason that mothers should breastfeed their infants, and ideally, this should be exclusive."

Previous research of this issue has been inconclusive, but these findings provide strong evidence of the protective association, Hauck said.
The report was published in the June 13 online edition of Pediatrics.

For the study, Hauck and colleagues looked at the connection between breastfeeding and SIDS by doing a meta-analysis of 18 studies. In this process, researchers look for common threads by combining the results of individual studies.

Their analysis showed that for infants who received any amount of breast milk for any time period, there was a 60% reduction in the risk of SIDS. When the researchers took into account other factors such as socioeconomic status, smoking and infant sleep position, the reduction in the risk of SIDS dropped to 45%, Hauck said.

However, when the researchers looked at the reduced risk of SIDS among infants who were exclusively breastfed, the risk was reduced by 73%.

"These results indicate that breastfeeding is strongly protective against SIDS. Exclusive breastfeeding confers the most protection," Hauck said.

Although the reasons for the association between breastfeeding and the reduced risk of SIDS is unclear, there are several theories.

"Breastfed infants more arousable during sleep," Hauck said. This may be due to the infants' need to be nursed, which may interrupt sleep. (SIDS appears to be linked to a defect in arousability from sleep, according to some experts.)

In addition, breastfed infants have fewer bouts of diarrhea and upper and lower respiratory infections, which are associated with vulnerability to SIDS, she said.

Moreover, there are benefits of breast milk to immune system at a time when infant's own immunity is still developing and the immunity the infant received from the mother is waning, which may also play a role in reducing the risk of SIDS, Hauck explained.

Based on these findings, "the recommendation to breastfeed infants should be included with other SIDS risk-reduction messages, to both reduce the risk of SIDS and promote breastfeeding for its many other infant and maternal health benefits," the investigators concluded.

Dr. Lourdes Q. Forster, an assistant professor of pediatrics at the University of Miami Miller School of Medicine, said that "we had been thinking that breastfeeding had a protective effect, but this solidifies the evidence."

The advice from the American Academy of Pediatrics is clear, Forster said. "Mothers should exclusively breastfeed their babies in the first six months of life and continue to nurse through the first year of life with the addition of supplemental foods," she said.

In addition to all the other benefits of breastfeeding, the reduction in the risk of SIDS is another important one, Forster said.

Copyright © 2011 HealthDay. All rights reserved.
SOURCES: Fern R. Hauck, M.D., M.S., associate professor, family medicine and public health, University of Virginia, Charlottesville; Lourdes Q. Forster, M.D., assistant professor, pediatrics, University of Miami Miller School of Medicine; June 13, 2011, Pediatrics, online

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