Patient demographics, obese vs non-obese
| Non-obese (BMI <30) | Obese (BMI ≥30) | P value | |
| Liver (n) | 182 | 55 | – |
| BMI | 25±3 | 35±6 | <0.001 |
| Age | 37±15 | 40±16 | 0.20 |
| Male gender | 132 (72%) | 37 (67%) | 0.45 |
| Mechanism of Injury | |||
| Assault | 4 (2%) | 0 | 0.27 |
| Fall | 9 (5%) | 1 (2%) | 0.31 |
| Motorcycle collision | 11 (6%) | 3 (6%) | 0.87 |
| Motor vehicle collision | 129 (71%) | 50 (91%) | 0.002 |
| Pedestrian/bike versus auto | 14 (8%) | 0 | 0.034 |
| Other | 15 (8%) | 1 (2%) | 0.096 |
| Injury severity score | 23±12 | 27±15 | 0.17 |
| Severe injury (grade 4/5) | 33 (18%) | 7 (13%) | 0.35 |
| Spleen (n) | 231 | 91 | – |
| BMI | 24.6±3.2 | 35.3±4.8 | <0.001 |
| Age | 40±18 | 43±16 | 0.09 |
| Male gender | 162 (70%) | 65 (71%) | 0.82 |
| Mechanism of Injury | |||
| Assault | 29 (13%) | 3 (3%) | 0.012 |
| Fall | 20 (9%) | 8 (9%) | 0.97 |
| Motorcycle collision | 12 (5%) | 11 (12%) | 0.031 |
| Motor vehicle collision | 135 (58%) | 62 (68%) | 0.11 |
| Pedestrian/bike vs auto | 14 (6%) | 2 (2%) | 0.15 |
| Other | 21 (9%) | 5 (6%) | 0.29 |
| Injury severity score | 21±12 | 24±15 | 0.40 |
| Severe injury (grade 4/5) | 44 (19%) | 25 (28%) | 0.097 |
BMI, body mass index.