Table 3

Coefficient estimates from OLS multivariate regression models

Multivariate regression1


Fresh fruit

Fresh vegetables


High variety2

Basic3

High variety2

Basic3


b (SE)

b (SE)

b (SE)

b (SE)


Median family income4

10.15* (5.99)

-0.12 (3.49)

13.87* (6.94)

16.12* (8.11)

Proportion African American

0.149* (0.087)

0.010 (0.055)

0.178 (0.112)

0.230 (0.123)*

Proportion Hispanic

0.050 (0.098)

0.043 (0.086)

0.009 (0.158)

0.030 (0.161)


Observations

21

22

23

23


R2

0.19

0.02

0.14

0.15

Maximum VIF

2.21

2.44

2.37

2.37

Mean VIF

1.79

1.93

1.89

1.89


1Coefficient estimates from multivariate linear regression (when all explanatory variables enter simultaneously). Robust standard errors clustered at CBG level in parentheses below coefficient estimates. *P < 0.1 **P < 0.05 ***P < 0.01

2High variety indices include all produce types listed in Table 1.

3Basic fruit index only includes apples, bananas, and oranges. Basic vegetable index only includes carrots, lettuce, onion, potatoes and tomatoes.

4 Taken in natural logarithm.

Dunn et al. Nutrition Journal 2011 10:6   doi:10.1186/1475-2891-10-6

Open Data