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Breastfeeding
Human milk is the appropriate nutrition for infants. Exclusive breastfeeding for the first 6 months and continued breastfeeding with appropriate introduction of solids at 6 months reduces the risk of many illnesses and chronic diseases. The Healthy People 2010 breastfeeding goals are to increase to 75% the proportion of women who initiate breastfeeding, to 50% the proportion of women who are breastfeeding at 6 months, and to 25% the proportion of women who breastfeed for 1 year. The World Health Organization (WHO) recommends 6 months of exclusive breastfeeding, followed by the timely introduction of appropriate complementary foods, and continued breastfeeding for 2 years and beyond.
Despite documentation and public knowledge of the health, social, and economic benefits of breastfeeding and recommendations from numerous organizations, including the American Academy of Pediatrics, the American Public Health Association, and the WHO, breastfeeding incidence, exclusivity, and duration are well below the goals identified in Healthy People 2010. National data also reveal disparities in breastfeeding practices, primarily associated with economic and education status. The primary demographic factors associated with not breastfeeding or breastfeeding for a short duration include being nonwhite, poor, unmarried, or younger than 25; completing 12 or less years of education; and living in the southeastern United States. To improve breastfeeding practices and to reduce existing disparities in infant and young child feeding, interventions need to target not only individuals but also organizations and communities.
Defining Breastfeeding
Breastfeeding behaviors are neither clearly defined nor consistently operationalized in much of the literature. Some studies of feeding practices define breastfeeding as exclusive (infants receive only human milk, with no water, other liquids, or solids), others permit water to be included in ‘exclusive’ breastfeeding, and others allow any amount of human milk to constitute the equivalent of ‘breastfeeding,’ even if human milk substitutes (HMS, also referred to as ‘formula’) or other liquids and solids are also part of the child's diet. Moreover, some studies define successful initiation of breastfeeding as having ‘ever breastfed,’ even just once, while others require that breastfeeding lasts a specific number of days or weeks to meet the criteria for successful initiation, and others fail to define how ‘breastfeeding’ is measured. Another consideration is the way in which the milk is being given, and whether the child is fed directly from the breast or fed human milk from a bottle.
Inconsistent definitions of breastfeeding make it difficult to compare and interpret study findings. If breastfeeding is not clearly defined, breastfeeding once adaycouldbegroupedinthesamecategoryasexclusive breastfeeding, despite the very different amounts of human milk and exposure of the infants to other nutrients. Additionally, carefully identifying when and why women discontinue exclusive breastfeeding may permit development of specific interventions to prevent untimely weaning. Women who discontinue exclusive breastfeeding in the first week postpartum may have experienced feeding technique difficulties, whereas women who stop exclusively breastfeeding later may do so because they are returning to work or school and have no place to express their milk. Different strategies are needed to address each of these situations.
Risks and Costs of Not Breastfeeding
Mothers and children who do not breastfeed lose the physiological, immunological, and psychological benefits that breastfeeding confers and face increased risk for a number of acute and chronic diseases. Women who do not breastfeed may experience more postpartum bleeding, increased risk of breast and ovarian cancers, as well as increased risk of osteoporosis and rheumatoid arthritis, short intervals between births, and longer time to return to prepregnancy weight than women who breastfeed. Child health risks associated with not breastfeeding or not receiving human milk include, but are not limited to, increased morbidity from gastrointestinal, respiratory, and middle-ear infections, more atopic illness and allergic disease, as well as increased risk of childhood obesity and type 1 and type 2 diabetes.
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