Accession Number : ADA305953
Title : Vitamin D and Breast Cancer.
Descriptive Note : Annual rept. 1 Jul 94-31 Dec 95,
Corporate Author : STANFORD UNIV CA
Personal Author(s) : Kelsey, Jennifer L.
PDF Url : ADA305953
Report Date : 31 JAN 1996
Pagination or Media Count : 13
Abstract : The objective of the proposed data analysis project is to assess whether high exposure to vitamin D from sunlight exposure, diet, and dietary supplements is associated with reduced breast cancer risk. We will perform a retrospective cohort analysis based on data provided by the cohort of women aged 25 to 74 years who participated in the first National Health and Nutrition Examination Survey (NHANES I) from 1971 to 1975 and who were followed-up in the NHANES I Epidemiologic Follow-Up Studies conducted in 1982-84 1986, and 1987. The average follow-up period was 15 years, during which 190 newly diagnosed breast cancers occurred. For each vitamin D-related exposure measure, we will estimate the incidence of breast cancer among exposed women and unexposed women, and we will estimate the relative risk associated with these exposure variables using the Cox proportional hazards model and Poisson regression, adjusting for potentially confounding variables. This data analysis project is a cost-effective way to explore a new hypothesis addressing potentially modifiable risk factors for breast cancer.
Descriptors : *DIET, *MAMMARY GLANDS, *VITAMIN D, *BREAST CANCER, DATA PROCESSING, RISK, COST EFFECTIVENESS, HAZARDS, EXPOSURE(GENERAL), MODELS, HEALTH, REDUCTION, VARIABLES, REGRESSION ANALYSIS, HYPOTHESES, WOMEN, EPIDEMIOLOGY, CANCER, POISSON DENSITY FUNCTIONS, SUNLIGHT, ADDRESSING.
Subject Categories : Medicine and Medical Research
Food, Food Service and Nutrition
Distribution Statement : APPROVED FOR PUBLIC RELEASE