Published online March 2, 2009
PEDIATRICS Vol. 123 No. 3 March 2009, pp. e406-e410 (doi:10.1542/ peds.2008-
2145)

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ARTICLE

Does Breastfeeding Reduce the Risk of Sudden Infant Death Syndrome?
M.M. Vennemann, MD, MPH, PDa, T. Bajanowski, MD, PDb, B. Brinkmann, MD, PDa, G.
Jorch, MD, PDc, K. Yücesan, MDa, C. Sauerland, MScd, E.A. Mitchell, FRACP, DSce
and the GeSID Study Group

a Institute of Legal Medicine
d Department of Medical Informatics and Biomathematics, University of Münster,
Münster, Germany
b Institute of Legal Medicine, University of Duisburg-Essen, Duisburg, Germany
c Department of Paediatrics, University of Magdeburg, Magdeburg, Germany
e Department of Paediatrics, University of Auckland, Auckland, New Zealand

BACKGROUND. In the last 20 years, the prevention campaigns to reduce the risk of
sudden infant death syndrome were very successful. In some countries the advice
to breastfeed is included in the campaigns' messages, but in other countries it
is not.

OBJECTIVE. To examine the association between type of infant feeding and sudden
infant death syndrome.

METHODS. The German Study of Sudden Infant Death is a case-control study of 333
infants who died of sudden infant death syndrome and 998 age-matched controls.

RESULTS. A total of 49.6% of cases and 82.9% of controls were breastfed at 2
weeks of age. Exclusive breastfeeding at 1 month of age halved the risk, partial
breastfeeding at the age of 1 month also reduced the risk of sudden infant death
syndrome, but after adjustment this risk was not significant. Being exclusively
breastfed in the last month of life/before the interview reduced the risk, as
did being partially breastfed. Breastfeeding survival curves showed that both
partial breastfeeding and exclusive breastfeeding were associated with a reduced
risk of sudden infant death syndrome.

CONCLUSIONS. This study shows that breastfeeding reduced the risk of sudden
infant death syndrome by 50% at all ages throughout infancy. We recommend
including the advice to breastfeed through 6 months of age in sudden infant
death syndrome risk-reduction messages.