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Breastfeeding in relation to risk of different breast cancer characteristics.


ABSTRACT: BACKGROUND: The aim of this present study was to examine duration of breastfeeding in relation to the risk of different subgroups of breast cancer. A prospective cohort, The Malmö Diet and Cancer study, including 14092 parous women, were followed during a mean of 10.2 years and a total of 424 incident breast cancers were diagnosed. METHODS: Tumours were classified regarding invasiveness, tumour size, axillary lymph node status, Nottingham grade, tumour proliferation (Ki67), HER2, cyclin D1 and p27, WHO histological type and hormone receptor status. Duration of breastfeeding was measured using total time of breastfeeding, categorized in quartiles using the lowest as the reference group (<4.0, ?4.0-?

SUBMITTER: Butt S 

PROVIDER: S-EPMC4022388 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Breastfeeding in relation to risk of different breast cancer characteristics.

Butt Salma S   Borgquist Signe S   Anagnostaki Lola L   Landberg Göran G   Manjer Jonas J  

BMC research notes 20140407


<h4>Background</h4>The aim of this present study was to examine duration of breastfeeding in relation to the risk of different subgroups of breast cancer. A prospective cohort, The Malmö Diet and Cancer study, including 14092 parous women, were followed during a mean of 10.2 years and a total of 424 incident breast cancers were diagnosed.<h4>Methods</h4>Tumours were classified regarding invasiveness, tumour size, axillary lymph node status, Nottingham grade, tumour proliferation (Ki67), HER2, cy  ...[more]

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