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Cancer. 2011 Aug 15;117(16):3805-13. doi: 10.1002/cncr.25957. Epub 2011 Feb 11.

Was race a factor in the outcomes of the Women's Health Eating and Living Study?

Author information

1
Department of Health Disparities Research, Center for Research on Minority Health, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA. rjpaxton@mdanderson.org

Abstract

BACKGROUND:

The objective of this study was to determine whether women who were participating in the Women's Healthy Eating and Living (WHEL) Study exhibited similar dietary changes, second breast cancer events, and overall survival regardless of race/ethnicity.

METHODS:

For this secondary analysis, the authors used data from 3013 women who were self-identified as Asian American, African American, Hispanic, or white and who were assigned randomly to a dietary intervention or a comparison group. Changes in dietary intake over time by race/ethnicity and intervention status were examined using linear mixed-effects models. Cox proportional hazards models were used to examine the effects of the intervention on the occurrence of second breast cancer events and overall survival. Statistical tests were 2-sided.

RESULTS:

African Americans and Hispanics consumed significantly more calories from fat (+3.2%) and less fruit (-0.7 servings daily) than Asians and whites at baseline (all P < .01). Overall, intervention participants significantly improved their dietary pattern from baseline to the end of Year 1, reducing calories from fat by 4.9% and increasing intake of fiber (+6.6 grams daily), fruit (+1.1 servings daily), and vegetables (+1.6 servings daily; all P < .05). Despite improvements in the overall dietary pattern of these survivors, the intervention did not significantly influence second breast cancer events or overall survival.

CONCLUSIONS:

Overall, all racial groups significantly improved their dietary pattern over time, but the maintenance of these behaviors were lower among African-American women. More research and larger minority samples are needed to determine the specific factors that improve breast cancer-specific outcomes in diverse populations of survivors.

PMID:
21319157
PMCID:
PMC3135701
DOI:
10.1002/cncr.25957
[Indexed for MEDLINE]
Free PMC Article
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