A study of breast cancer in Irish women

In a study of 100 women with breast cancer and 200 unaffected women the epidemiological characteristic of breast cancer most commonly described--namely, an excess of nonparous women among cases when compared with controls, was not observed. It is suggested that two factors, a dearth of first births...

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Bibliographic Details
Published in:British Journal of Preventive & Social Medicine 1975-09, Vol.29 (3), p.178-181
Main Authors: Herity, B A, O'Halloran, M J, Bourke, G J, Wilson-Davis, K
Format: Article
Language:English
Subjects:
Adult
Age
Age distribution
Age Factors
Breast - injuries
Breast cancer
Breast Neoplasms - epidemiology
Breasts
Female
Gender equality
Humans
Hysterectomy
Ireland
Marital status
Marriage
Marriage age
Menarche
Menopause
Parity
Pregnancy
Single Person
Socioeconomic Factors
Womens songs
Citations: Items that this one cites
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Summary:In a study of 100 women with breast cancer and 200 unaffected women the epidemiological characteristic of breast cancer most commonly described--namely, an excess of nonparous women among cases when compared with controls, was not observed. It is suggested that two factors, a dearth of first births born to mothers under 20 years of age and an unusually high proportion of first births when aged 30 years or more, are responsible for this finding. No association was found between breast cancer and socioeconomic status, marital status, age at marriage, age at first pregnancy, parity, or age at menarche. Significant associations with breast cancer included age at natural menopause, hysterectomy, and breast trauma. These findings are discussed.
ISSN:0007-1242
0143-005X
1470-2738
DOI:10.1136/jech.29.3.178