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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Breast. 2012 Feb 28;21(4):608–611. doi: 10.1016/j.breast.2012.02.003

Table 1.

Predictors of baseline n3 fatty acid levels in breast cancer patients from hierarchical regression analysis

Predictor a β Coefficient Adjusted R square b Significance c
Dietary intake n3 fatty acids 0.342 0.170 0.006
BMI (kg/m2) −0.217 0.259 0.027
Blood levels of carotenoids d 0.214 0.327 0.041
Hours TV/day −0.356 0.435 0.010
a

All variables were at study entry (baseline). Dietary intake of n3 fatty acids included that from 24-hour recalls of diet as well as from all supplements reported as taken in the past two weeks.

b

The adjusted R square from the hierarchical regression analysis increases as variables are entered in the model, accounting for 43.5% of the inter-individual variance in blood levels of n3 fatty acids when all four variables are present.

c

Significance is the p-value for the F change.

d

Blood levels of carotenoids were calculated the sum of lutein, zeaxanthin, lycopene, β-carotene, α-carotene and β-cryptoxanthin.