Table 2 Baseline patient characteristics and differences by NCI (Norwegian Centrality Index)
Characteristic | Overall n (Col %) | Centrality index (NCI) 1–2 n (Col %) | Centrality index (NCI) 3–4 n (Col %) | Centrality index (NCI) 5–6 n (Col %) | p-value |
|---|---|---|---|---|---|
Total | 601 | 337 | 201 | 63 | |
Age (years), mean (SD) | 46.88 (21.2) | 47.63 (20.4) | 45.42 (21.7) | 47.54 (23.8) | 0.49 |
Sex | |||||
Male | 451 (75.0) | 247 (73.3) | 154 (76.6) | 50 (79.4) | 0.486 |
Female | 150 (25.0) | 90 (26.6) | 47 (23.4) | 13 (20.6) | |
Educationa | |||||
Primary school (0–9/10 years) | 58 (10.3) | 26 (8.3) | 23 (12.0) | 9 (15.3) | < 0.001 |
High School (10/11–12/13 years) | 229 (40.7) | 109 (34.8) | 91 (47.6) | 29 (49.2) | |
University (13/14–16/17 years) | 163 (29.0) | 115 (36.7) | 39 (20.4) | 9 (15.3) | |
University (> 16/ > 17 years) | 51 (9.1) | 39 (12.5) | 9 (4.7) | 3 (5.1) | |
Children (< 18 years) | 62 (11.0) | 24 (7.7) | 29 (15.2) | 9 (15.3) | |
Preinjury comorbidity | |||||
No comorbidity | 221 (36.8) | 118 (35.0) | 79 (39.3) | 24 (38.1) | 0.592 |
≥ 1 comorbidity | 380 (63.2) | 219 (65.0) | 122 (60.7) | 39 (61.9) | |
Preinjury comorbidity | |||||
Mental health or drug/alcohol condition | 133 (22.1) | 79 (23.4) | 48 (23.9) | 6 (9.5) | 0.039 |
Neurological | 58 (9.7) | 32 (9.5) | 23 (11.4) | 3 (4.8) | 0.29 |
Muscular/skeletal | 99 (16.5) | 57 (16.9) | 30 (14.9) | 12 (19.0) | 0.704 |
Cardiac/vascular | 140 (23.3) | 76 (22.6) | 42 (20.9) | 22 (34.9) | 0.063 |
Other | 187 (31.1) | 105 (31.2) | 63 (31.3) | 19 (30.2) | 0.984 |
Several | 221 (36.8) | 121 (35.9) | 77 (38.3) | 23 (36.5) | 0.854 |
Mechanism of injury | |||||
Falls | 243 (40.4) | 136 (40.4) | 90 (44.8) | 17 (27.0) | 0.035 |
Transport- related injuries | 227 (37.8) | 133 (39.5) | 67 (33.3) | 27 (42.9) | |
Violence | 18 (3.0) | 13 (3.9) | 5 (2.5) | 0 (0.0) | |
Other | 113 (18.8) | 55 (16.3) | 39 (19.4) | 19 (30.2) | |
Injury severity | |||||
Moderate injury (NISS 10–15) | 144 (24.0) | 97 (28.8) | 32 (15.9) | 15 (23.8) | 0.003 |
Severe injury (NISS > 15) | 457 (76.0) | 240 (71.2) | 169 (84.1) | 48 (76.2) | |
Injured body region (AIS ≥ 3) | |||||
Head | 250 (41.6) | 138 (40.9) | 91 (45.3) | 21 (33.3) | 0.229 |
Face | 15 (2.5) | 7 (2.1) | 7 (3.5) | 1 (1.6) | 0.63 |
Neck | 11 (1.8) | 3 (0.9) | 5 (2.5) | 3 (4.8) | 0.053 |
Thorax | 197 (32.8) | 106 (31.5) | 68 (33.8) | 23 (36.5) | 0.681 |
Abdomen | 73 (12.1) | 29 (8.6) | 35 (17.4) | 9 (14.3) | 0.009 |
Spine | 80 (13.3) | 36 (10.7) | 29 (14.4) | 15 (23.8) | 0.016 |
Upper extremity | 9 (1.5) | 3 (0.9) | 4 (2.0) | 2 (3.2) | 0.22 |
Lower extremity | 92 (15.3) | 52 (15.4) | 34 (16.9) | 6 (9.5) | 0.362 |
External and other | 2 (0.4) | 2 (0.6) | 0 (0.0) | 0 (0.0) | 0.624 |
Surgery | |||||
No | 214 (35.6) | 130 (38.6) | 67 (33.3) | 17 (27.0) | 0.15 |
Yes | 387 (64.4) | 207 (61.4) | 134 (66.7) | 46 (73.0) | |
LOS (acute care unit at the trauma center) in days, median (IQR) | 6 (3, 10) | 5 (3, 9) | 6 (4, 11) | 8 (5, 13) | < 0.001 |
Discharge destination | |||||
Home | 211 (35.1) | 140 (41.5) | 48 (23.9) | 23 (36.5) | < 0.001 |
Local hospital | 256 (42.6) | 123 (36.5) | 109 (54.2) | 24 (38.1) | |
Specialized rehabilitation | 134 (22.3) | 74 (22.0) | 44 (21.9) | 16 (25.4) |