Table 3.
Null and Bivariate Two-Level Linear Regression Results of Tract-level variables Predicting Number of Daily Fruit and Vegetable Servings.
| Null model |
Bivariate models |
|||||||
|---|---|---|---|---|---|---|---|---|
| Model 1 | Model 3a | Model 3b | Model 3c | Model 3d | Model 3e | Model 3f | Model 3g | |
| Parameter Estimate (standard error) | Parameter Estimate (standard error) | Parameter Estimate (standard error) | Parameter Estimate (standard error) | Parameter Estimate (standard error) | Parameter Estimate (standard error) | Parameter Estimate (standard error) | Parameter Estimate (standard error) | |
| FIXED PART | ||||||||
| Intercept | 5.186 (.163) | 3.97 (.238) | 5.28 (.304) | 5.29 (.226) | 4.95 (.26) | 5.18 (.334) | 5.03 (.47) | 4.95 (.33) |
| Tract-level variable | ||||||||
| Proportion Foreign Born | .065 (.011)*** | |||||||
| Proportion NH White | −.003 (.006) | |||||||
| Proportion Black | −.007 (.007) | |||||||
| Proportion Hispanic | .006 (.007) | |||||||
| Proportion below Poverty | −.002 (.012) | |||||||
| Median Household income | .032 (.138) | |||||||
| Median value owner-occupied homes | .013 (.023) | |||||||
| RANDOM PART | ||||||||
| Individual Level Variance | 9.77 (.61) | 9.88 (.60) | 9.77 (.61) | 9.77 (.61) | 9.78 (.61) | 9.77 (.61) | 9.76 (.61) | 9.73 (.61) |
| Tract Level Variance | 1.26 (.46) | .37 (.30) | 1.19 (.45) | 1.17 (.44) | 1.17 (.44) | 1.21 (.45) | 1.21 (.45) | 1.23 (.45) |
| TOTAL VARIANCE | 11.04 | 10.25 | 10.96 | 10.94 | 10.95 | 10.98 | 10.97 | 10.96 |
| Intraclass Correlation Coefficient (ICC) | 11.4% | 3.6% | 10.9% | 10.7% | 10.7% | 10.2% | 11.0% | 11.0% |
***
p<.0001
NOTE:All proportions (i.e. proportion foreign born; proportion NH white; proportion black, etc) were multiplied by 100 for ease of interpretation, so that each unit increase is equivalent to an increase of 1 percent. For median household income and median value of owner-occupied homes, each unit increase represents an increase in $10,000