Table 3.
Change in food security score over one year study period for the interaction of “change in one year participation status” and treatment group among Indiana SNAP-Ed participants using general linear regression modeling.
| Mean Change in Household Food Security Score | ||||||||
|---|---|---|---|---|---|---|---|---|
| Control n = 163 | Intervention n = 165 |
Intervention-Control | ||||||
| Mean | SE | Mean | SE | Mean Difference ‡ | SE | p-Value § | ||
| SNAP | SNAP × Treatment Group | −0.9 | 0.3 | −1.7 | 0.3 | −0.8 | 0.4 | 0.2 |
| No Participation | −0.8 | 0.4 | −1.3 | 0.5 | −0.5 | 0.6 | 1.0 | |
| Baseline Participation Only | −2.1 | 0.7 | −2.4 | 0.8 | −0.3 | 1.0 | 1.0 | |
| Follow-up Participation Only | −0.8 | 0.8 | −1.3 | 0.8 | −0.5 | 1.1 | 1.0 | |
| Baseline and Follow-up Participation | 0 | 0.4 | −2.0 | 0.3 | −2.0 | 0.5 | <0.01 | |
| WIC | WIC × Treatment Group | −0.9 | 0.4 | −1.9 | 0.3 | −1.1 | 0.5 | 0.1 |
| No Participation | −0.6 | 0.4 | −2.7 | 0.5 | −2.1 | 0.6 | <0.01 | |
| Baseline Participation Only | −1.0 | 0.7 | −0.8 | 0.5 | 0.2 | 0.8 | 1.0 | |
| Follow-up Participation Only | −1.5 | 1.1 | −2.7 | 1.1 | −1.2 | 1.6 | 1.0 | |
| Baseline and Follow-up Participation | −0.4 | 0.4 | −1.5 | 0.4 | −1.1 | 0.6 | 0.5 | |
| Food Pantry | Food Pantry × Treatment Group | −0.9 | 0.4 | −2.1 | 0.6 | −1.2 | 0.8 | 0.7 |
| No Participation | −0.5 | 0.3 | −1.8 | 0.3 | −1.3 | 0.4 | 0.03 | |
| Baseline Participation Only | −0.4 | 0.9 | −3.2 | 1.5 | −2.8 | 1.7 | 0.7 | |
| Follow-up Participation Only | −0.6 | 1.1 | −0.9 | 1.1 | −0.3 | 1.6 | 1.0 | |
| Baseline and Follow-up Participation | −2.3 | 0.9 | −2.8 | 1.6 | −0.5 | 1.9 | 1.0 | |
Least squares means were calculated using general linear regression models with change in food security as the response variable. SNAP, WIC, and food pantries were investigated in separate models including interactions with treatment group. ‡ A decrease in food security score from baseline to 1 year follow-up indicates improved food security. § Tukey adjustment for multiple comparisons in stratified analyses in each model. Interactions of each food assistance program with treatment were significant when interaction term p ≤ 0.05. Abbreviations: SE, Standard Error of the Least Squares Mean; SNAP-Ed, Supplemental Nutrition Assistance Program-Education; SNAP, Supplemental Nutrition Assistance Program; WIC Special Supplemental Nutrition Program for Women, Infants, and Children.