Table 3.
Weighted Descriptive Statistics for Variables Used in a Multinomial Regression Analysis of Membership into Different Trajectories of Residential Exposure to the Risk of Industrial Hazard, Panel Study of Income Dynamics: 1991–2007
| Latent class trajectories | Whites | Blacks | ||
|---|---|---|---|---|
| Means | Standard deviations |
Means | Standard deviations |
|
| c#1: High to high | .20 | .40 | .33 | .47 |
| c#2: Low to low | .46 | .50 | .29 | .45 |
| c#3: High to low | .22 | .42 | .26 | .44 |
| c#4: Low to high | .11 | .32 | .13 | .33 |
| Independent variables | ||||
| Age in 1991 | 41.35 | 21.00 | 35.27 | 18.83 |
| Women | .38 | .48 | .57 | .50 |
| Share of time as a homeowner | .71 | .34 | .43 | .39 |
| Highest level of education attained | 13.95 | 3.30 | 12.68 | 3.03 |
| Average inflation-adjusted income ($1000) | 62.19 | 57.52 | 33.81 | 25.29 |
| Share of time spent in public housing or Section 8 | .03 | .13 | .17 | .27 |
| Pop. density rate of change 1991–2007 | −.26 | .74 | .03 | 3.76 |
| Census tract pop. density in 1991 (1,000 per sq mi) | 3.65 | 10.37 | 7.38 | 13.32 |
| Frequency (#) of inter-neighborhood moves | 1.70 | 1.79 | 2.32 | 2.14 |
| N (head of households) | 7,549 | 5,232 | ||