Table 1.
Prevalence of each symptom cluster and diagnosis by time point
| Time Point | |||||
|---|---|---|---|---|---|
| Week 2 (n = 226) | Week 9 (n = 208) | ||||
| Diagnosis or Symptom Cluster | n | % | n | % | McNemar's Test |
| DSM‐5 PTSD symptom clustersa | |||||
| B. Reexperiencing | 111 | 49.1 | 61 | 29.3 | P < .0001 |
| C. Avoidance | 114 | 50.4 | 77 | 37.0 | P < .0001 |
| D. Cognitions and mood | 95 | 42.0 | 46 | 22.1 | P < .0001 |
| E. Arousal | 85 | 37.6 | 49 | 23.7 | P < .0001 |
| G. Impairment | 70 | 31.0 | 40 | 19.3 | P < .001 |
| Dissociation | 27 | 12.1 | 9 | 4.3 | P < .0001 |
| DSM‐5 diagnoses | |||||
| ASD | 32 | 14.2 | – | – | – |
| 4+ symptoms | 60 | 26.5 | – | – | – |
| PTSDb | 41 | 18.1 | 20 | 9.6 | P < .002 |
| Preschool PTSDb | 45 | 19.9 | 20 | 9.6 | P < .0001 |
| DSM‐IV diagnoses | |||||
| Acute stress disorder | 42 | 18.6 | – | – | – |
| ‘Two‐week PTSD/PTSDb | 40 | 17.7 | 18 | 8.7 | P < .001 |
| Other psychopathologyc | |||||
| Depression (M, SD) | 5.32 | 5.83 | 4.48 | 5.53 | t 194 = 3.46, P < .001 |
| Depression (above cut‐off) | 52 | 25.0 | 48 | 23.4 | P > .4 |
| Anxiety (M, SD) | 45.61 | 12.83 | 42.14 | 12.18 | t 194 = 5.66, P < .0001 |
| Anxiety (above cut‐off) | 39 | 18.8 | 25 | 12.2 | P < .02 |
a
For comparison over time, the PTSD symptom clusters are used here.
b
“Two‐week PTSD” ignores the requirement that symptoms be present for at least 4 weeks.
c
N = 208 at week 2, N = 205 at week 9; depression assessed using the Short Mood and Feelings Questionnaire, anxiety assessed using the Spence Child Anxiety Scale.