Table 1.
Patient characteristics for bicyclists and non-bicyclists with cervical spine injuries (CSI) in the South-East region of Norway during the time period 2015 – 2019.
| AllN (%) 2162 (100) | Non-bicycle CSIN (%)1901 (100) | Bicycle CSIN (%)261 (100) | Statistics | ||
|---|---|---|---|---|---|
| Sex | Male | 1461 (67.6) | 1244 (65.4) | 217 (83.1) | P<0.001 |
| Female | 701 (32.4) | 657 (34.6) | 44 (16.9) | ||
| Mean age | Years | 59.1 years | 59.9 years | 53.3 years | P<0.001 |
| Pre-injury ASA1 | 1-2 | 1278 (59.1) | 1054 (55.4) | 224 (85.8) | P<0.001 |
| 3-5 | 783 (36.2) | 759 (40.0) | 21 (8.1) | ||
| Unknown | 101 (4.7) | 88 (4.6) | 16 (6.1) | ||
| Cervical injury | OC-Fx2 | 219 (10.1) | 158 (8.3) | 61 (23.4) | P<0.001 |
| C1- Fx | 246 (11.4) | 217 (11.4) | 29 (11.1) | NS | |
| OFx3 | 419 (19.4) | 403 (21.2) | 16 (6.1) | P<0.001 | |
| C2 – Hangman Fx | 60 (2.8) | 56 (2.9) | 4 (1.5) | NS | |
| C2 – Other Fx | 141 (6.5) | 127 (6.9) | 14 (5.4) | NS | |
| C2/C3 injury4 | 46 (2.1) | 41 (2.2) | 5 (1.9) | NS | |
| C3/C4 injury | 175 (8.1) | 145 (7.6) | 30 (11.5) | NS | |
| C4/C5 injury | 251 (11.6) | 215 (11.3) | 36 (13.8) | NS | |
| C5/C6 injury | 368 (17.0) | 318 (16.7) | 50 (19.2) | NS | |
| C6/C7 injury | 571 (36.3) | 497 (26.1) | 74 (28.4) | NS | |
| C7/Th1injury | 178 (8.2) | 153 (8.0) | 25 (9.6) | NS | |
| cSCI | Yes | 250 (11.6) | 219 (11.5) | 31 (11.9) | NS |
| Level of cSCI | OC-C2 | 21 (1.0) | 20 (1.1) | 1 (0.4) | NS |
| C3-C7 | 229 (10.6) | 199 (10.5) | 30 (11.5) | NS | |
| Multiple trauma | No | 951 (44.0) | 870 (45.8) | 81 (31.0) | P<0.001 |
| Yes | 1076 (49.8) | 908 (47.8) | 168 (64.4) | ||
| Unknown | 135 (6.2) | 123 (6.5) | 12 (4.6) |
1
Pre-Injury ASA – Pre-Injury American Society of Anesthesiologists Physical Status Classification
2
OC-Fx – Occipital condyle fracture
3
OFx – Odontoid fracture
4
Injury – Fx and/or discoligamentous injury with potential instability at affected level, e.g. C2/C3, C3/C4 etc.