Vitamin D and breast cancer recurrence in the Women's Healthy Eating and Living (WHEL) Study

Elizabeth T. Jacobs, Cynthia A. Thomson, Shirley W. Flatt, Wael K. Al-Delaimy, Elizabeth A. Hibler, Lovell A. Jones, Elizabeth C. LeRoy, Vicky A. Newman, Barbara A. Parker, Cheryl L. Rock, John P. Pierce

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Abstract

Background: There is a paucity of research evaluating the relation between vitamin D and recurrence of breast cancer after treatment. Objective: This study was designed to evaluate the associations between circulating concentrations of 25-hydroxyvitamin D [25 (OH)D] and dietary, supplemental, and total intake of vitamin D and recurrent or new breast cancer events within the Women's Healthy Eating and Living (WHEL) Study. Design: A prospective cohort study design (n = 3085) was used to evaluate the relation between dietary, supplemental, and total vitamin D intake and recurrent breast cancer, and a nested case-control study with 512 matched pairs was used for analysis of the association between 25(OH)D and breast cancer recurrence. Results: No relation between 25(OH)D and breast cancer recurrence was observed. Compared with women with serum concentrations of 25(OH)D ≥30 ng/mL, adjusted odds ratios (95% CI) for breast cancer recurrence were 1.14 (0.57, 2.31) for those with concentrations <10 ng/mL, 1.00 (0.68-1.48) for concentrations ≥10 and <20 ng/mL, and 1.05 (0.76, 1.47) for concentrations ≥20 and < 30 ng/mL. No significant associations were observed when analyses were stratified by pre- and postmenopausal status or for local, regional, or distant recurrence or death. Vitamin D intake was not related to breast cancer recurrence overall, although for premenopausal women there was a significant inverse association between dietary vitamin D intake and recurrence (P for trend = 0.02). Conclusion: These results do not provide support for a relation between concentrations of 25(OH)D after treatment and the recurrence of breast cancer. This trial is registered at clinicaltrials.gov for the WHEL Study as NCT00003787.

Original languageEnglish (US)
Pages (from-to)108-117
Number of pages10
JournalAmerican Journal of Clinical Nutrition
Volume93
Issue number1
DOIs
StatePublished - Jan 1 2011

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ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

Cite this

Jacobs, E. T., Thomson, C. A., Flatt, S. W., Al-Delaimy, W. K., Hibler, E. A., Jones, L. A., LeRoy, E. C., Newman, V. A., Parker, B. A., Rock, C. L., & Pierce, J. P. (2011). Vitamin D and breast cancer recurrence in the Women's Healthy Eating and Living (WHEL) Study. American Journal of Clinical Nutrition, 93(1), 108-117. https://doi.org/10.3945/ajcn.2010.30009