Table 2 Characteristics of survivors according to participation in one or both survey waves
Characteristics | Wave 1 | Wave 2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Participated in wave 1 and 2 (n = 255) | Participated in wave 1 only (n = 70) | p value | Participated in wave 1 and 2 (n = 255) | Participated in wave 2 only (n = 30) | p value | |||||
n/mean | (%/sd) | n/mean | (%/sd) | n/mean | (%/sd) | n/mean | (%/sd) | |||
Mean age at attack (years) | 19.4 | (4.3) | 19.3 | (5.7) | 0.887 | 19.4 | (4.3) | 18.8 | (4.1) | 0.444 |
Male gender | 139 | (54.5) | 33 | (47.1) | 0.274 | 139 | (54.5) | 12 | (40.0) | 0.132 |
Non-norwegian origin | 25 | (9.9) | 14 | (20.3) | 0.019 | 25 | (9.9) | 2 | (7.4) | 0.757 |
Financially disadvantaged | 51 | (20.5) | 17 | (25.4) | 0.387 | 51 | (20.5) | 6 | (21.4) | 0.906 |
Living with parent(s) | 154 | (61.1) | 48 | (70.6) | 0.151 | 118 | (47.0) | 13 | (44.8) | 0.823 |
Divorced parents | 96 | (38.9) | 30 | (44.8) | 0.381 | 96 | (38.7) | 13 | (44.8) | 0.523 |
Youth Labour Party member | 234 | (94.4) | 61 | (87.1) | 0.040 | 234 | (94.4) | 27 | (96.4) | 0.723 |
Sibling(s) in the study | 27 | (10.6) | 5 | (7.1) | 0.391 | 27 | (10.6) | 2 | (6.7) | 0.561 |
Hospitalized | 19 | (7.5) | 5 | (7.1) | 0.930 | 19 | (7.5) | 4 | (13.3) | 0.281 |
Terror exposure (mean 0–13) | 8.28 | (2.24) | 9.32 | (1.91) | <0.001 | 8.28 | (2.24) | 9.05 | (2.00) | 0.103 |
Posttraumatic stress (mean PTSD-RI) | 1.53 | (0.72) | 1.67 | (0.68) | 0.164 | 1.21 | (0.67) | 1.60 | (0.77) | 0.003 |
Anxiety/depression symptoms (mean SCL-8) | 2.05 | (0.66) | 2.16 | (0.64) | 0.204 | 1.77 | (0.62) | 2.11 | (0.86) | 0.043 |
Somatic symptoms (mean CSSI-8) | 1.72 | (0.54) | 1.73 | (0.53) | 0.944 | 1.62 | (0.48) | 1.90 | (0.67) | 0.033 |
Social support (mean FSSQ-7) | 4.56 | (0.57) | 4.56 | (0.59) | 0.951 | 4.56 | (0.60) | 4.53 | (0.61) | 0.753 |
Mental health service utilization | 180 | (72.0) | 54 | (77.1) | 0.391 | 169 | (67.3) | 23 | (79.3) | 0.188 |