Table 1. Summary statistics of outcome and predictor variables for analyzing changes in food security among various sub populations.
| Variable | Year | Mean | Std.Dev. | Min | Max |
|---|---|---|---|---|---|
| Outcome variable | |||||
| Food security | 2004 | 3.11 | 1.26 | 0 | 4 |
| Food security | 2007 | 3.64 | 0.91 | 0 | 4 |
| Food security | 2010 | 3.65 | 0.92 | 0 | 4 |
| Predictor variables | |||||
| Human capital | |||||
| Average education | 2004 | 5.12 | 2.51 | 0 | 13 |
| % working | 2004 | 0.22 | 0.19 | -0.02 | 1 |
| Prime age death | 2004 | 0.07 | 0.25 | 0 | 1 |
| Financial & Physical capital | |||||
| Wealth index | 2004 | 2.2 | 0.47 | 0.94 | 3.84 |
| Child grants | 2004 | 0.87 | 1.17 | 0 | 11 |
| Social capital | |||||
| Head migrant | 2004 | 0.36 | 0.47 | 0 | 1 |
| Head refugee | 2004 | 0.29 | 0.45 | 0 | 1 |
| Natural capital | |||||
| NDVI | 2004 | 0.17 | 0.12 | 0.05 | 1.53 |
| Demographic characteristics | |||||
| % children | 2004 | 0.34 | 0.2 | 0 | 1 |
| % elderly | 2004 | 0.07 | 0.16 | 0 | 1 |
| Female head | 2004 | 0.38 | 0.48 | 0 | 1 |
Note: Only the outcome variable was measured as a time series for the three time steps (2004, 2007, and 2010). All predictor variables were included as time invariant and measured at the base year (2004) only. Sample size (N) = 8,147 households for which data was available for all three years.