Table 5 Univariate analysis of postoperative outcomes in patients with BMI > 35 stratified by preoperative weight loss
From: Preoperative weight loss before total hip arthroplasty negatively impacts postoperative outcomes
Outcome | Total Sample | No Weight Loss | Weight Loss | P-value |
|---|---|---|---|---|
Length of Stay (Days from Operation to Discharge) (Range) | 2.31 (0–116) | 2.31 (0–116) | 2.83 (0–12) | 0.01 |
Operative Time (Range) | 98.6 (0–948) | 98.6 (0–948) | 101.3 (31–272) | 0.49 |
Discharge Destination | 0.22 | |||
Home | 45,001 (82.6%) | 44,922 (82.6%) | 79 (76.7%) | |
Non-Home | 9,273 (17.0%) | 9,250 (17.0%) | 23 (22.3%) | |
Unknown | 217 (0.4%) | 216 (0.4%) | 1 (1.0%) | |
Return to OR | 0.07 | |||
Yes | 1,559 (2.9%) | 1,553 (2.9%) | 6 (5.8%) | |
No | 52,932 (97.1%) | 52,835 (97.1%) | 97 (94.2%) | |
Still in Hospital after 30 days | 0.82 | |||
Yes | 28 (0.1%) | 28 (0.1%) | 0 (0.0%) | |
No | 54,463 (99.9%) | 54,360 (99.9%) | 103 (100.0%) | |
Readmission | 0.09 | |||
Yes | 2,368 (4.3%) | 2,360 (4.3%) | 8 (7.8%) | |
No | 52,123 (95.7%) | 52,028 (95.7%) | 95 (92.2%) | |
Superficial SSI | 0.24 | |||
Yes | 707 (1.3%) | 707 (1.3%) | 0 (0.0%) | |
No | 53,784 (98.7%) | 53,681 (98.7%) | 103 (100.0%) | |
Deep SSI | 0.43 | |||
Yes | 247 (0.5%) | 246 (0.5%) | 1 (1.0%) | |
No | 54,244 (99.5%) | 54,142 (99.5%) | 102 (99.0%) | |
Organ Space SSI | 0.70 | |||
Yes | 361 (0.7%) | 360 (0.7%) | 1 (1.0%) | |
No | 54,130 (99.3%) | 54,028 (99.3%) | 102 (99.0%) | |
Wound Dehiscence | 0.18 | |||
Yes | 151 (0.3%) | 150 (0.3%) | 1 (1.0%) | |
No | 54,340 (99.7%) | 54,238 (99.7%) | 102 (99.0%) | |
Pneumonia | 0.17 | |||
Yes | 145 (0.3%) | 144 (0.3%) | 1 (1.0%) | |
No | 54,346 (99.7%) | 54,244 (99.7%) | 102 (99.0%) | |
Reintubation | 0.68 | |||
Yes | 92 (0.2%) | 92 (0.2%) | 0 (0.0%) | |
No | 54,399 (99.8%) | 54,296 (99.8%) | 103 (100.0%) | |
Pulmonary Embolism | 0.57 | |||
Yes | 170 (0.3%) | 170 (0.3%) | 0 (0.0%) | |
No | 54,321 (99.7%) | 54,218 (99.7%) | 103 (100.0%) | |
Failure to Wean | 0.78 | |||
Yes | 40 (0.1%) | 40 (0.1%) | 0 (0.0%) | |
No | 54,451 (99.9%) | 54,348 (99.9%) | 103 (100.0%) | |
Progressive Renal Insufficiency | 0.70 | |||
Yes | 78 (0.1%) | 78 (0.1%) | 0 (0.0%) | |
No | 54,413 (99.9%) | 54,310 (99.9%) | 103 (100.0%) | |
Acute Renal Failure | 0.78 | |||
Yes | 43 (0.1%) | 43 (0.1%) | 0 (0.0%) | |
No | 54,448 (99.9%) | 54,345 (99.9%) | 103 (100.0%) | |
Urinary Tract Infection | 0.30 | |||
Yes | 517 (0.9%) | 515 (0.9%) | 2 (1.9%) | |
No | 53,974 (99.1%) | 53,873 (99.1%) | 101 (98.1%) | |
CVA/Stroke | 0.79 | |||
Yes | 39 (0.1%) | 39 (0.1%) | 0 (0.0%) | |
No | 54,452 (99.9%) | 54,349 (99.9%) | 103 (100.0%) | |
Cardiac Arrest | 0.79 | |||
Yes | 42 (0.1%) | 42 (0.1%) | 0 (0.0%) | |
No | 54,449 (99.9%) | 54,346 (99.9%) | 103 (100.0%) | |
Myocardial Infarction | 0.66 | |||
Yes | 101 (0.2%) | 101 (0.2%) | 0 (0.0%) | |
No | 54,390 (99.8%) | 54,287 (99.8%) | 103 (100.0%) | |
Bleeding Transfusion | 0.001 | |||
Yes | 2,201 (4.0%) | 2,190 (4.0%) | 11 (10.7%) | |
No | 52,290 (96.0%) | 52,198 (96.0%) | 92 (89.3%) | |
Deep Venous Thrombosis | 0.26 | |||
Yes | 180 (0.3%) | 179 (0.3%) | 1 (1.0%) | |
No | 54,311 (99.7%) | 54,209 (99.7%) | 102 (99.0%) | |
Sepsis | 0.54 | |||
Yes | 203 (0.4%) | 203 (0.4%) | 0 (0.0%) | |
No | 54,288 (99.6%) | 54,185 (99.6%) | 103 (100.0%) | |
Septic Shock | <0.001 | |||
Yes | 41 (0.1%) | 41 (0.1%) | 0 (0.0%) | |
No | 54,450 (99.9%) | 54,347 (99.9%) | 103 (100.0%) | |
Any Medical Complication | 0.01 | |||
Yes | 4,525 (8.3%) | 4,509 (8.3%) | 16 (15.5%) | |
No | 49,966 (91.7%) | 49,879 (91.7%) | 87 (84.5%) |