Means and proportions for study variables, by analytic sample
| . | Full Sample . | Fixed-Effects Sample . | . | . | ||
|---|---|---|---|---|---|---|
| Variable . | Mean/% . | SD . | Mean/% . | SD . | Min. . | Max. . |
| Home Neighborhood Measures | ||||||
| Tract concentrated disadvantage | 0.00 | 1.00 | 0.02 | 0.79 | −1.15 | 3.07 |
| Tract proportion Black | .32 | .30 | .31 | .26 | 0.00 | 0.91 |
| Tract collective efficacy | 0.00 | 1.00 | −0.12 | 0.86 | −2.51 | 1.73 |
| Tract violent crime rate | 18.88 | 18.90 | 20.43 | 18.48 | 0.00 | 94.72 |
| Block group population density | 5,241.90 | 2,933.05 | 5,523.58 | 2,940.54 | 323.58 | 17,947.28 |
| Nonhome Exposure Measures | ||||||
| Nonhome concentrated disadvantage | 0.00 | 1.00 | 0.09 | 0.97 | −1.58 | 4.49 |
| Nonhome proportion Black | .25 | .24 | .26 | .22 | 0.00 | 0.94 |
| Nonhome collective efficacy | 0.00 | 1.00 | −0.14 | 0.93 | −2.88 | 2.24 |
| Nonhome violent crime rate | 6.67 | 6.49 | 7.38 | 6.15 | 0.00 | 47.96 |
| Adolescent Measures | ||||||
| Total nonhome time (minutes) | 1,758.91 | 930.42 | 1,707.94 | 940.52 | 2 | 5,318 |
| Black (vs. White) | .48 | .51 | 0 | 1 | ||
| Foreign-born | .02 | .02 | 0 | 1 | ||
| Age | 14.30 | 1.86 | 14.20 | 1.85 | 11 | 17 |
| Male | .46 | .46 | 0 | 1 | ||
| Family Controls | ||||||
| Household size | 4.65 | 1.61 | 4.63 | 1.60 | 2 | 16 |
| Parent age | 45.43 | 8.55 | 44.84 | 8.86 | 18 | 81 |
| Parent male | .12 | .12 | 0 | 1 | ||
| Household Income | ||||||
| ≤$30,000 | .37 | .40 | 0 | 1 | ||
| $30,001–$60,000 | .24 | .26 | 0 | 1 | ||
| ≥$60,001 | .40 | .34 | 0 | 1 | ||
| Parent Education | ||||||
| <High school | .05 | .06 | 0 | 1 | ||
| High school/GED | .16 | .17 | 0 | 1 | ||
| Some college | .36 | .42 | 0 | 1 | ||
| College degree | .25 | .21 | 0 | 1 | ||
| Graduate/professional degree | .18 | .15 | 0 | 1 | ||
| Parent Marital Status | ||||||
| Married | .53 | .49 | 0 | 1 | ||
| Cohabiting | .10 | .12 | 0 | 1 | ||
| Single | .20 | .21 | 0 | 1 | ||
| Other | .17 | .18 | 0 | 1 | ||
| Residence Owned (vs. rented) | .61 | .57 | 0 | 1 | ||
| Years Lived in Current Neighborhood | 12.10 | 10.23 | 11.34 | 9.69 | 0 | 62 |
| Moved in Last Two Years | .16 | .16 | 0 | 1 | ||
| Season | ||||||
| Winter (December–February) | .23 | .24 | 0 | 1 | ||
| Spring (March–May) | .23 | .22 | 0 | 1 | ||
| Summer (June–August) | .29 | .28 | 0 | 1 | ||
| Autumn (September–November) | .26 | .26 | 0 | 1 | ||
| Number of Weekend Days | ||||||
| 0 | .02 | .02 | 0 | 1 | ||
| 1 | .03 | .04 | 0 | 1 | ||
| 2 | .95 | .95 | 0 | 1 | ||
| N: Individual Level | 1,180 | 674 | ||||
| . | Full Sample . | Fixed-Effects Sample . | . | . | ||
|---|---|---|---|---|---|---|
| Variable . | Mean/% . | SD . | Mean/% . | SD . | Min. . | Max. . |
| Home Neighborhood Measures | ||||||
| Tract concentrated disadvantage | 0.00 | 1.00 | 0.02 | 0.79 | −1.15 | 3.07 |
| Tract proportion Black | .32 | .30 | .31 | .26 | 0.00 | 0.91 |
| Tract collective efficacy | 0.00 | 1.00 | −0.12 | 0.86 | −2.51 | 1.73 |
| Tract violent crime rate | 18.88 | 18.90 | 20.43 | 18.48 | 0.00 | 94.72 |
| Block group population density | 5,241.90 | 2,933.05 | 5,523.58 | 2,940.54 | 323.58 | 17,947.28 |
| Nonhome Exposure Measures | ||||||
| Nonhome concentrated disadvantage | 0.00 | 1.00 | 0.09 | 0.97 | −1.58 | 4.49 |
| Nonhome proportion Black | .25 | .24 | .26 | .22 | 0.00 | 0.94 |
| Nonhome collective efficacy | 0.00 | 1.00 | −0.14 | 0.93 | −2.88 | 2.24 |
| Nonhome violent crime rate | 6.67 | 6.49 | 7.38 | 6.15 | 0.00 | 47.96 |
| Adolescent Measures | ||||||
| Total nonhome time (minutes) | 1,758.91 | 930.42 | 1,707.94 | 940.52 | 2 | 5,318 |
| Black (vs. White) | .48 | .51 | 0 | 1 | ||
| Foreign-born | .02 | .02 | 0 | 1 | ||
| Age | 14.30 | 1.86 | 14.20 | 1.85 | 11 | 17 |
| Male | .46 | .46 | 0 | 1 | ||
| Family Controls | ||||||
| Household size | 4.65 | 1.61 | 4.63 | 1.60 | 2 | 16 |
| Parent age | 45.43 | 8.55 | 44.84 | 8.86 | 18 | 81 |
| Parent male | .12 | .12 | 0 | 1 | ||
| Household Income | ||||||
| ≤$30,000 | .37 | .40 | 0 | 1 | ||
| $30,001–$60,000 | .24 | .26 | 0 | 1 | ||
| ≥$60,001 | .40 | .34 | 0 | 1 | ||
| Parent Education | ||||||
| <High school | .05 | .06 | 0 | 1 | ||
| High school/GED | .16 | .17 | 0 | 1 | ||
| Some college | .36 | .42 | 0 | 1 | ||
| College degree | .25 | .21 | 0 | 1 | ||
| Graduate/professional degree | .18 | .15 | 0 | 1 | ||
| Parent Marital Status | ||||||
| Married | .53 | .49 | 0 | 1 | ||
| Cohabiting | .10 | .12 | 0 | 1 | ||
| Single | .20 | .21 | 0 | 1 | ||
| Other | .17 | .18 | 0 | 1 | ||
| Residence Owned (vs. rented) | .61 | .57 | 0 | 1 | ||
| Years Lived in Current Neighborhood | 12.10 | 10.23 | 11.34 | 9.69 | 0 | 62 |
| Moved in Last Two Years | .16 | .16 | 0 | 1 | ||
| Season | ||||||
| Winter (December–February) | .23 | .24 | 0 | 1 | ||
| Spring (March–May) | .23 | .22 | 0 | 1 | ||
| Summer (June–August) | .29 | .28 | 0 | 1 | ||
| Autumn (September–November) | .26 | .26 | 0 | 1 | ||
| Number of Weekend Days | ||||||
| 0 | .02 | .02 | 0 | 1 | ||
| 1 | .03 | .04 | 0 | 1 | ||
| 2 | .95 | .95 | 0 | 1 | ||
| N: Individual Level | 1,180 | 674 | ||||