Table 2 Demographic and clinical characteristics of the responders and non-responders
From: Psychometric properties of the psychosocial screening instrument for physical trauma patients (PSIT)
|  | Responders (n = 364) | Non-responders (n = 1084) | Difference between responders and non-responders |
|---|---|---|---|
| Â | Median (IQR) | Median (IQR) | Mann-Whitney U (p-value) |
Age at time of injury (years) | 64.4 (52.0–78.0) | 62.0 (41.0–77.0) | U = 181,211 (p = 0.02, r = 0.06) |
ISS | 5 (4–9) | 5 (2–9) | U = 173,292 (p = 0.14) |
Missing (n, %) | 3 (0.8%) | 71 (6.5%) | |
|  | N (%) | N (%) | χ2 (p-value) |
Gender | |||
 Female | 152 (41.8%) | 474 (43.7%) | χ2 = 0.43 (p = 0.50) |
 Male | 212 (58.2%) | 610 (56.3%) | |
ISS | |||
 < 16 | 320 (87.9%) | 993 (91.6%) | χ2 = 2.86 (p = 0.09) |
 ≥ 16 | 41 (11.3%) | 91 (8.4%) | |
 Missing | 3 (0.8%) | 0 (0.0%) | |
Injury cause | |||
 Falls | 193 (53.0%) | 548 (50.6%) | χ2 = 9.251 (p = 0.24) |
 Road traffic injury | 108 (29.7%) | 268 (23.7%) | |
 Work-related | 24 (6.6%) | 51 (4.7%) | |
 Sports-related | 26 (7.1%) | 60 (5.5%) | |
 Violence | 5 (1.4%) | 37 (3.4%) | |
 Intentional injury | 3 (0.8%) | 14 (1.3%) | |
 Other | 1 (0.3%) | 8 (0.8%) | |
 Missing | 4 (1.1%) | 98 (9.0%) | |
Injury mechanism | |||
 Blunt | 358 (98.4%) | 1029 (94.9%) | χ2 = 5.95 (p = 0.02, phi = −0.06) |
 Penetrating | 6 (1.6%) | 48 (4.4%) | |
 Missing | 0 (0.0%) | 7 (0.6%) | |
ICU admission (yes) | 61 (16.8%) | 156 (14.4%) | χ2 = 1.2 (p = 0.27) |