Changes in vitamin and mineral supplement use after breast cancer diagnosis in the Pathways Study: a prospective cohort study

Vitamin and mineral supplement use after a breast cancer diagnosis is common and controversial. Dosages used and the timing of initiation and/or discontinuation of supplements have not been clearly described. We prospectively examined changes in use of 17 vitamin/mineral supplements in the first six...

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Bibliographic Details
Published in:BMC cancer 2014-05, Vol.14 (1), p.382-382, Article 382
Main Authors: Greenlee, Heather, Kwan, Marilyn L, Ergas, Isaac J, Strizich, Garrett, Roh, Janise M, Wilson, Allegra T, Lee, Marion, Sherman, Karen J, Ambrosone, Christine B, Hershman, Dawn L, Neugut, Alfred I, Kushi, Lawrence H
Format: Article
Language:English
Subjects:
Adult
Age Factors
Aged
Aged, 80 and over
Breast cancer
Breast Neoplasms - diet therapy
Breast Neoplasms - epidemiology
Breast Neoplasms - pathology
California
Cancer therapies
Dietary Supplements
Female
Humans
Life Style
Logistic Models
Medical prognosis
Medical research
Metabolic Networks and Pathways
Middle Aged
Minerals - administration & dosage
Participation
Prospective Studies
Questionnaires
Review boards
Skin cancer
Studies
Vitamins
Vitamins - administration & dosage
Womens health
Writing
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Summary:Vitamin and mineral supplement use after a breast cancer diagnosis is common and controversial. Dosages used and the timing of initiation and/or discontinuation of supplements have not been clearly described. We prospectively examined changes in use of 17 vitamin/mineral supplements in the first six months following breast cancer diagnosis among 2,596 members (28% non-white) of Kaiser Permanente Northern California. We used multivariable logistic regression to examine demographic, clinical, and lifestyle predictors of initiation and discontinuation. Most women used vitamin/mineral supplements before (84%) and after (82%) diagnosis, with average doses far in excess of Institute of Medicine reference intakes. Over half (60.2%) reported initiating a vitamin/mineral following diagnosis, 46.3% discontinuing a vitamin/mineral, 65.6% using a vitamin/mineral continuously, and only 7.2% not using any vitamin/mineral supplement before or after diagnosis. The most commonly initiated supplements were calcium (38.2%), vitamin D (32.01%), vitamin B6 (12.3%) and magnesium (11.31%); the most commonly discontinued supplements were multivitamins (17.14%), vitamin C (15.97%) and vitamin E (45.62%). Higher education, higher intake of fruits/vegetables, and receipt of chemotherapy were associated with initiation (p-values
ISSN:1471-2407
1471-2407
DOI:10.1186/1471-2407-14-382