Relationships Between Demographic Factors and Any Aggression
| No Aggression (n = 298) | With Aggression (n = 120) | Test Statistic | p | |
|---|---|---|---|---|
| Age, y | 13.811 ± 3.391 | 12.634 ± 3.386 | t = 3.3215df = 416 | <.0014 |
| Sex | ||||
| Female | 146 | 45 | χ2 = 4.554df = 1 | .032 |
| Male | 152 | 75 | ||
| Race | ||||
| Caucasian | 197 | 61 | χ2 = 8.448df = 1 | .0039 |
| Non-Caucasian | 101 | 59 | ||
| Ethnicity | ||||
| Non-Latino | 211 | 85 | χ2 = 0df = 1 | .996 |
| Latino or unknown | 87 | 35 | ||
| Insurance | ||||
| Private | 112 | 31 | .0489* | |
| Public | 159 | 78 | ||
| None | 10 | 7 | ||
| Unknown | 17 | 4 | ||
| Living with … | ||||
| Two biological parents | 63 | 11 | χ2 = 13.99df = 4 | .0073 |
| One biological parent | 166 | 64 | ||
| Nonparental relatives | 23 | 14 | ||
| Adoptive family | 18 | 10 | ||
| Foster/group home/state custody/other | 28 | 21 | ||
| Living with … | ||||
| One or more biological parent(s) | 229 | 75 | χ2 = 8.88df = 1 | .0029 |
| Other | 69 | 45 |
All data are the number of subjects, unless otherwise indicated.
* Fisher's exact test (two-sided).