Research Article
Vacant Properties and Violence in Neighborhoods
Table 1
Summary statistics and years of data pertaining to the 1816 blockgroups in Philadelphia County.
| | Mean (SD) | Median (IQR 25%, 75%) |
| All assaults (2002–2006) | 5.28 (4.97) | 4 | Gun assaults (2002–2006) | 1.77 (2.25) | 1 | Nongun assaults (2002–2006) | 3.51 (3.50) | 3 | No. of vacant properties (2002–2006) | 12.53 (16.67) | 6 | Total population (2004) | 792.45 (507.09) | 711.5 | Median age (2004) | 34.85 (8.35) | 35 | Male : female ratio (2004) | 0.89 (0.52) | 0.9 | No. of black residents (2004) | 353.22 (353.42) | 248 | No. of Hispanic residents (2004) | 69.18 (136.70) | 20 | Median household income (2004) |
35297 (20046) | 33213 | No. of unemployed (2004) | 42.18 (40.65) | 31 | No. of with bachelor’s degree (2004) | 78.88 (105.31) | 43.84 | No. of single parent households (2004) | 90.94 (60.56) | 83 | No. of residential properties (2004) | 253.40 (158.70) | 238 |
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*SD: standard deviation; IQR: interquartile range.
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