Table 2 Group differences. Differences between positive (PTSD) and negative screening cases (without PTSD). Differences between these two groups on measures which were assessed in the validation interview are shown. Means and standard deviations (in brackets) or percentages and numbers (in brackets) are reported.
From: Screening for Posttraumatic Stress Disorder among Somali ex-combatants: A validation study
| Â | Positive screening (14) | negative screening (48) | test statistic1 (df) | p |
|---|---|---|---|---|
SRQ-20 sum score | 9.07 (5.05) | 2.52 (4.11) | -5.010 (62) | < .001 |
Psychotic symptoms | 57% (8) | 12% (6) | 6 | .001 |
Number of traumatic events | 8.29 (3.00) | 6.54 (2.98) | -1.94 (62) | .057 |
Years in armed conflict2 | 5.4 (4.0) | 4.8 (4.6) | -.450 (59) | .655 |
Sum of minor physical symptoms in last month | 1.71 (1.68) | .82 (1.21) | -2.24 (62) | .029 |
Average hours of sleep per 24 h in previous week | 6.43 (2.95) | 8.54 (2.39) | 2.776 (62) | .007 |
Money spent on khat in last week (US$)3 | 7.38 (10.13) | 3.05 (5.80) | -1.317 | .191 |
Average hours chewing khat per day in last week3 | 5.54 (5.94) | 3.14 (2.46) | -2.14 (56) | .037 |
Khat used in combat 4 | 85% (11) | 68% (27) | 6 | .305 |
Average numbers of cigarettes per day in last week 5 | 7.14 (7.52) | 4.94 (6.94) | -1.027 (60) | .309 |