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Nutrition and age at first birth in breast-cancer risk
Journal article   Open access   Peer reviewed

Nutrition and age at first birth in breast-cancer risk

J Pawlega and R Wallace
British journal of cancer, Vol.41(6), pp.941-945
06/01/1980
DOI: 10.1038/bjc.1980.172
PMCID: PMC2010360
PMID: 7426318
url
https://europepmc.org/articles/pmc2010360View
Published (Version of record) Open Access

Abstract

Urban/rural breast-cancer incidence ratios in the state of Iowa for 1950 and 1969-71 were contrasted with corresponding urban and rural distributions of age-at-first-birth and population nutrition, variable measured approximately 15 years before each morbidity survey and putatively related to breast-cancer incidence. Over the study interval, the decline in the urban/rural breast-cancer incidence ratio correlated better with changing nutritional patterns than with changing age-at-first-birth.

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