Table 2.
Mechanism and injuries of adult trauma patients undergoing trauma laparotomy stratified by body mass index
| Characteristic | Normala (n = 3095) | Overweight (n = 2810) | Obese (n = 1444) | Severely obese (n = 580) | Morbidly obese (n = 401) |
|---|---|---|---|---|---|
| Mechanism, n (%) | |||||
| MVC | 573 (18.5%) | 539 (19.2%) | 295 (20.4%) | 123 (21.2%) | 82 (20.4%) |
| MCC | 68 (2.2%) | 97 (3.5%) | 65 (4.5%)b | 33 (5.7%)b | 23 (5.7%)b |
| Bicyclist | 33 (1.1%) | 21 (0.7%) | 12 (0.8%) | 5 (0.9%) | 3 (0.7%) |
| Pedestrian-struck | 90 (2.9%) | 114 (4.1%) | 40 (2.8%) | 20 (3.4%) | 12 (3.0%) |
| Fall | 177 (5.7%) | 144 (5.1%) | 70 (4.8%) | 25 (4.3%) | 19 (4.7%) |
| Stab-wound | 402 (13.0%) | 350 (12.5%) | 164 (11.4%) | 69 (11.9%) | 34 (8.5%) |
| Gunshot wound | 1376 (44.5%) | 1233 (43.9%) | 648 (44.9%) | 263 (45.3%) | 182 (45.4%) |
| Suicide | 169 (5.5%) | 143 (5.1%) | 76 (5.3%) | 21 (3.6%) | 26 (6.5%) |
| Injuries, n (%) | |||||
| TBI | 309 (10.0%) | 317 (11.3%) | 171 (11.8%) | 70 (12.1%) | 43 (10.7%) |
| Spine | 572 (18.5%) | 483 (17.2%) | 228 (15.8%) | 93 (16.0%) | 95 (23.7%) |
| Heart | 3 (0.1%) | 5 (0.2%) | 7 (0.5%)b | 0 (0.0%) | 1 (0.2%) |
| Lung | 40 (1.3%) | 30 (1.1%) | 29 (2.0%) | 9 (1.6%) | 8 (2.0%) |
| Rib | 182 (5.9%) | 248 (8.8%)b | 126 (8.7%)b | 49 (8.4%) | 48 (12.0%)b |
| Pelvis | 590 (19.1%) | 511 (18.2%) | 229 (15.9%) | 111 (19.1%) | 75 (18.7%) |
| Upper extremity | 389 (12.6%) | 367 (13.1%) | 214 (14.8%) | 95 (16.4%) | 57 (14.2%) |
| Lower extremity | 386 (12.5%) | 414 (14.7%) | 250 (17.3%)b | 107 (18.4%)b | 81 (20.2%)b |
| Stomach | 284 (9.2%) | 227 (8.1%) | 109 (7.5%) | 49 (8.4%) | 32 (8.0%) |
| Small Intestine | 1278 (41.3%) | 1126 (40.1%) | 593 (41.1%) | 224 (38.6%) | 170 (42.4%) |
| Colorectal | 1080 (34.9%) | 972 (34.6%) | 507 (35.1%) | 198 (34.1%) | 129 (32.2%) |
| Pancreas | 85 (2.7%) | 76 (2.7%) | 43 (3.0%) | 23 (4.0%) | 13 (3.2%) |
| Liver | 595 (19.2%) | 496 (17.7%) | 259 (17.9%) | 105 (18.1%) | 67 (16.7%) |
| Spleen | 521 (16.8%) | 485 (17.3%) | 242 (16.8%) | 106 (18.3%) | 78 (19.5%) |
| Kidney | 294 (9.5%) | 276 (9.8%) | 142 (9.8%) | 57 (9.8%) | 44 (11.0%) |
| Burn | 1 (0.0%) | 1 (0.0%) | 2 (0.1%) | 3 (0.5%)b | 0 (0.0%) |
MVC motor vehicle collision, MCC motorcycle collision, TBI traumatic brain injury
aReference group
bStatistically significant