Table 2. Perioperative outcomes.
| Characteristic | Multiple rib fracture w/o flail chest undergoing SSRF | ||||
|---|---|---|---|---|---|
| Total | Morbidly obese (BMI > 40 kg/m2) | Obese (≤ 30 BMI < 40 kg/m2) | Normal weight (19≤ BMI <30 kg/m2) | p-value | |
| (n = 1754) | (n = 87) | (n = 106) | (n = 1561) | ||
| LOS, day a | 11.6 ± 0.2 | 14.2 ± 0.6 | 10.3 ± 0.3 | 11.6 ± 0.2 | 0.004 |
| Unfavorable discharge a | 0.298 | ||||
| No | 1203 (69.3) | 54 (62.4) | 72 (68.1) | 1077 (69.7) | |
| Yes | 535 (30.7) | 32 (37.6) | 34 (31.9) | 469 (30.3) | |
| In-hospital mortality | NA | ||||
| No | 1738 (99.1) | 86 (98.8) | 106 (100.0) | 1546 (99.0) | |
| Yes | 16 (0.9) | 1 (1.2) | 0 (0.0) | 15 (1.0) | |
| Hospital costs (per 1000 dollars) | 193.8 ± 4.4 | 239.4 ± 8.5 | 174.8 ± 4.3 | 192.5 ± 4.6 | 0.021 |
| Adverse events, any | 909 (51.8) | 55 (63.7) | 58 (54.8) | 796 (50.9) | 0.029 |
| Tracheostomy | 150 (8.5) | 11 (12.9) | 5 (4.5) | 134 (8.5) | 0.076 |
| Pneumonia | 250 (14.2) | 16 (18.6) | 16 (15.1) | 218 (13.9) | 0.427 |
| SSI | 22 (1.2) | 2 (2.4) | 0 (0.0) | 20 (1.3) | NA |
| Sepsis | 142 (8.1) | 10 (11.7) | 9 (8.6) | 123 (7.8) | 0.379 |
| Hemorrhage/need for transfusion | 519 (29.6) | 36 (41.8) | 34 (32.3) | 449 (28.7) | 0.017 |
| VTE | 79 (4.4) | 7 (8.0) | 6 (5.6) | 66 (4.2) | 0.137 |
| AKI | 184 (10.5) | 14 (16.1) | 13 (12.2) | 157 (10.0) | 0.126 |
| AMI | 12 (0.7) | 0 (0.0) | 1 (0.9) | 11 (0.7) | NA |
| CVA | 426 (24.2) | 27 (31.4) | 26 (24.5) | 373 (23.7) | 0.207 |
| ARDS/respiratory failure | 512 (29.1) | 35 (40.6) | 30 (28.2) | 447 (28.5) | 0.023 |
| Mechanical ventilation ≥ 96 hours | 287 (16.3) | 26 (30.2) | 15 (14.0) | 246 (15.7) | <0.001 |
Continuous variables are presented as mean ± SE; categorical variables are presented as unweighted counts (weighted percentage).
P-value < 0.05 is shown in bold.
Abbreviations: LOS, length of stay; SSI, surgical site infection; VTE, venous thromboembolism; AKI, acute kidney injury; AMI, acute myocardial infarction; CVA, cerebrovascular accident; ARDS, acute respiratory distress syndrome; w/o, with/without; NA, not applicable
a Excluding patients who died in hospitals.