Table 3

Multivariable linear regression estimates of dense area (cm2) stratified by season of blood draw (January-June, July-December), New York city multiethnic breast cancer project, 2007-2008
Characteristic β coefficient 95% CI P-value
January-June (N = 91)
Serum 25(OH)D (ng/ml) −0.046 −0.338 0.246 0.757
Age at mammogram (years) −0.813 −1.421 −0.205 0.009
Race/ethnicity
  White Reference
  African American 6.014 −3.463 15.491 0.210
  African Caribbean 8.406 −2.912 19.724 0.143
  Hispanic/Other −2.480 −13.841 8.882 0.665
Education
  ≤High school −1.405 −9.837 7.027 0.741
  Some college/associate degree −4.541 −13.109 4.026 0.295
  Bachelor, master, doctoral degree Reference
Body mass index (kg/m2) 0.056 −0.540 0.653 0.851
July-December (N = 23)
Serum 25(OH)D (ng/ml) −0.254 −0.487 −0.022 0.034
Age at mammogram (years) −0.272 −0.711 0.167 0.204
Race/ethnicity
  White Reference
  African American 5.525 −1.281 12.332 0.103
  African Caribbean 1.711 −5.984 9.406 0.639
  Hispanic/Other 3.002 −8.678 14.682 0.588
Education
  ≤High school 0.492 −6.070 7.053 0.874
  Some college/associate degree −1.411 −7.427 4.604 0.621
  Bachelor, master, doctoral degree Reference
Body mass index (kg/m2) −0.892 −1.323 −0.462 0.001

Crew et al.

Crew et al. Nutrition & Metabolism 2014 11:18   doi:10.1186/1743-7075-11-18

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