Table 1.
Distribution of Socio-Demographics and Primary Variables of Interest by Child Abuse Exposure
| Abused (n = 38) | Controls (n = 56) | |||||
| % | N | % | N | χ2 | P-value | |
| Sex | .35 | .56 | ||||
| Female | 52.6 | 20 | 46.4 | 26 | ||
| Male | 47.3 | 18 | 53.6 | 30 | ||
| Race | 4.89 | .30 | ||||
| White | 42.1 | 16 | 57.1 | 32 | ||
| Black | 26.3 | 10 | 10.7 | 6 | ||
| Hispanic | 15.8 | 6 | 12.5 | 7 | ||
| Asian | 7.9 | 3 | 12.5 | 7 | ||
| Biracial or other | 7.9 | 3 | 7.1 | 4 | ||
| Poverty | 51.4 | 18 | 19.6 | 11 | 7.59 | .006 |
| M | (SD) | M | (SD) | t-Value | P-value | |
| Age | 13.77 | 3.48 | 13.44 | 18.65 | .45 | .66 |
| PTSD Symptoms | ||||||
| PTSD Severity | 19.63 | 17.21 | 6.07 | 9.92 | 4.84 | <.001 |
| Avoidance | 7.02 | 6.81 | 1.93 | 3.84 | 4.63 | <.001 |
| Re-experiencing | 5.42 | 6.65 | 1.66 | 3.09 | 3.77 | <.001 |
| Hyper-arousal | 7.18 | 5.89 | 2.48 | 3.81 | 4.70 | <.001 |
| Resting RSA | 7.17 | 1.10 | 7.12 | 1.06 | .26 | .80 |
| Early Extinction CS+ | .11 | .16 | .12 | .20 | .37 | .71 |
Note. Abbreviations: RSA= respiratory sinus arrhythmia; CS+= conditioned stimulus paired with aversive noise; PTSD= posttraumatic stress disorder. Poverty was assessed as percent of families living below the poverty line. PTSD symptoms were assessed with the UCLA PTSD Reaction Index (PTSD-RI), child report.