Supply of clean milk key to sharp decline in infant mortality in U.S.

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Cleaning the market milk supply was the single most important contributor to the steep decline in infant mortality in the U.S. starting in the late 19th and early 20th centuries, according to a systematic review of historical data by Kwang-Sun Lee of the University of Chicago’s Pritzker School of Medicine.

The full abstract:
Starting in the late 19th and early 20th centuries, a precipitous decline in infant mortality was observed in the United States. Economic growth, improved nutrition, new sanitary measures, and advances in knowledge about infant care all contributed to this decline in infant mortality. Little is known, however, about how these individual factors affected disease-specific components of infant mortality over time. Systematic review of historical data suggests that cleaning the market milk supply was the single most important contributor to this decline in both diarrheal and overall infant mortality, and that this development played a far more important role than family income, other sanitary measures, or medical intervention.

Perspect Biol Med. 2007 Autumn;50(4):585-602.
Infant mortality decline in the late 19th and early 20th centuries: the role of market milk.
Lee KS.

 

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