Sir.—Duncan et al1 found that infants who were exclusively breast-fed for six months had a subnormal increase in weight and length from 2 to 4 months of age compared with the standards from the National Center for Health Statistics (NCHS).
We have examined the growth charts for all 115 children (55 boys and 60 girls) who were born in 1978 and who, in January 1984, lived in the catchment area of a well-child clinic in Östersund, a small city in central Sweden. Seventeen children were formulafed (no breast-feeding recorded at age 2 months ± 10 days), 29 were mixed-fed (one breast meal or more at age 2 months ± 10 days; less than four breast meals at age 4 months ±2 weeks), 52 were breast-fed (four breast meals or more at age 4 months ±2 weeks; no formula before this age but "educational" portions of solids were permitted),
AXELSSON I, MOUSSA M. Growth of Breast-fed Infants. Am J Dis Child. 1985;139(3):219. doi:https://doi.org/10.1001/archpedi.1985.02140050013001
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