Table 5 Differences in mean scale scores for cases and non-cases for evaluation of discriminant validity of trauma symptoms scales
From: Validation of the UCLA Child Post traumatic stress disorder-reaction index in Zambia
| Caseness as identified by child and caregiver report | |||
|---|---|---|---|
| Fear Symptom | |||
| Cases (n = 195) | Non-cases (n = 31) | p-values | |
| PTSD-RI symptom scale, mean (SE) | 17.3 (1.3) | 9.3 (2.7) | 0.02 |
| Locally-specific symptom scale, mean (SE) | 15.1 (1.2) | 8.6 (2.3) | 0.04 |
| Total symptom scale, mean (SE) | 32.3 (2.4) | 17.9 (4.8) | 0.02 |
| Avoidance Symptom | |||
| Cases (n = 34) | Non-cases (n = 163) | ||
| PTSD-RI symptom scale, mean (SE) | 26.7 (3.4) | 11.0 (1.1) | <0.001 |
| Locally-specific symptom scale, mean (SE) | 23.8 (3.2) | 9.0 (1.0) | <0.001 |
| Total symptom scale, mean (SE) | 50.5 (6.5) | 20.0 (2.0) | <0.001 |
| Validity Question Counts* | |||
| Cases (N = 38) | Non-cases (N = 29) | ||
| PTSD-RI symptom scale, mean (SE) | 25.2 (3.2) | 9.4 (2.8) | <0.001 |
| Locally-specific symptom scale, mean (SE) | 22.1 (3.0) | 9.1 (2.3) | 0.002 |
| Total symptom scale, mean (SE) | 47.3 (6.1) | 18.5 (4.9) | <0.001 |