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Journal of Tropical Pediatrics 1983 29(1):40-44; doi:10.1093/tropej/29.1.40
© 1983 by Oxford University Press
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research-article

Contraceptives and the New Trend in Breast-feeding—A Causal Connection?

JØRGEN HILDEN, M.D., KNUD BIERING-SØRENSEN, M.D. and FIN BIERING-SØRENSEN, M.D.

Institute of Medical Genetics University of Copenhagen
Social Welfare and Health Services Municipality of Copenhagen
Rigshospitalet, University of Copenhagen

Reprint requests: JØrgen Hilden. Institute of Medical Genetics, University of Copenhagen, 71 Raadmandsgade, DK-2200 Copenhagen N, Denmark.

Copenhagen data show a decline in the duration of breast-feeding from World War II up to 1965. During 1966–1968 a transitory increase was seen, and from 1972 onwards the abrupt world-wide increase began. Running parallel with these fluctuations we found a changing pattern in the use of contraceptives: more pills containing progestogen as a major constituent and more IUDs were used by mothers with babies in periods of increased breast-feeding. We suggest as a hypothesis that the use of pills rich in progestogen and the use of IUDs have contributed to the recent increase in breast-feeding; i.e. this increase is not exclusively due to changing attitudes in mothers and the health personnel.


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