Environment and Breast Cancer: Science Review

Evidence From Humans
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Life-style and mortality
Hirayama, T. Contributions to Epidemiology and Biostatistics. 1990. 6, .
Funding agency
Not reported
Study Participants
Menopausal Status
The menopausal status of women included in this study is listed here.
Premenopausal and postmenopausal combined
Participant selection: Inclusion and exclusion criteria
Criteria used to select participants in the study.
Census population based study with no information given about inclusion and exclusion criteria
Comment about participation selection
Large cohort study with limited information regarding methodology
Exposure Investigated
Exposures investigated
Soy bean paste soup
How exposure was measured
Other: Interview
Exposure assessment comment
Very broad exposure measurement
Breast cancer outcome investigated
Mortality from breast cancer
Ethnic groups with separate analysis
If this study provided a separate analysis by ethnic or racial group, the groups are listed here.
Confounders considered
Other breast cancer risk factors, such as family history, age at first birth, and hormone replacement therapy use, that were taken into account in the study.
Not considered: BMI, race, parity, menopausal status, alcohol, family history
Genetic characterization included
If the study analyzed relationships between environmental factors and inherited genetic variations, this field will be marked “Yes.” “No”, if not.
Strength of associations reported
Analyses included RR with 95% CI, daily versus daily, follow-up 17 years.
0.85 (0.68 - 1.06)
Results Comments
None given