Table 2.
Training and test data set patient characteristics reported as number patients (%) or mean ± standard deviation. HCUP code description and distribution is shown only for those representing >1% of the train data set.
| Train | Test | |
|---|---|---|
| # of Patients | 47,988 | 11,997 |
| # of Patients with In Hospital Mortality (%) | 389 (0.81%) | 87 (0.73%) |
| Age (years) | 56 ± 17 | 56 ± 18 |
| Estimated Blood loss (cc) | 95 ± 540 | 94 ± 410 |
| Presence of Arterial Line (%) | 8585 (17.9%) | 2135 (18.0%) |
| Presence of pulmonary artery Line (%) | 1641 (3.4%) | 430 (3.6%) |
| Presence of Central Line (%) | 2444 (5.1%) | 635 (5.3%) |
| ASA score (%) | ||
| 1 | 3023 (6.3%) | 762 (6.4%) |
| 2 | 17930 (37.4%) | 4477 (37.3%) |
| 3 | 23960 (49.9%) | 5986 (49.9%) |
| 4 | 2911 (6.1%) | 735 (6.1%) |
| 5 | 144 (0.3%) | 30 (0.3%) |
| 6 | 4 (0.01%) | 0 (0%) |
| HCUP Code Description (%) | ||
| UPPER GASTROINTESTINAL ENDOSCOPY, BIOPSY | 3864 (8.05%) | 965 (8%) |
| COLONOSCOPY AND BIOPSY | 1693 (3.53%) | 388 (3.2%) |
| LAMINECTOMY, EXCISION INTERVERTEBRAL DISC | 1029 (2.14%) | 287 (2.4%) |
| OTHER THERAPEUTIC PROCEDURES, HEMIC AND LYMPHATIC SYSTEM | 1013 (2.11%) | 247 (2.1%) |
| OTHER OR THERAPEUTIC PROCEDURES ON RESPIRATORY SYSTEM | 985 (2.05%) | 254 (2.1%) |
| INCISION AND EXCISION OF CNS | 942 (1.96%) | 255 (2.1%) |
| OTHER OR PROCEDURES ON VESSELS OTHER THAN HEAD AND NECK | 932 (1.94%) | 207 (1.7%) |
| OTHER THERAPEUTIC ENDOCRINE PROCEDURES | 904 (1.88%) | 258 (2.2%) |
| HIP REPLACEMENT, TOTAL AND PARTIAL | 792 (1.65%) | 186 (1.6%) |
| ARTHROPLASTY KNEE | 768 (1.6%) | 193 (1.6%) |
| OTHER OR THERAPEUTIC NERVOUS SYSTEM PROCEDURES | 750 (1.56%) | 181 (1.5%) |
| THYROIDECTOMY, PARTIAL OR COMPLETE | 737 (1.54%) | 172 (1.4%) |
| SPINAL FUSION | 735 (1.53%) | 150 (1.3%) |
| OTHER OR THERAPEUTIC PROCEDURES ON BONE | 722 (1.5%) | 195 (1.6%) |
| CONVERSION OF CARDIAC RHYTHM | 720 (1.5%) | 184 (1.5%) |
| HEART VALVE PROCEDURES | 715 (1.49%) | 186 (1.6%) |
| CHOLECYSTECTOMY AND COMMON DUCT EXPLORATION | 700 (1.46%) | 216 (1.8%) |
| ENDOSCOPIC RETROGRADE CANNULATION OF PANCREAS (ERCP) | 663 (1.38%) | 155 (1.3%) |
| KIDNEY TRANSPLANT | 659 (1.37%) | 194 (1.6%) |
| OTHER OR THERAPEUTIC PROCEDURES ON NOSE, MOUTH AND PHARYNX | 653 (1.36%) | 173 (1.4%) |
| OTHER HERNIA REPAIR | 652 (1.36%) | 178 (1.5%) |
| HYSTERECTOMY, ABDOMINAL AND VAGINAL | 641 (1.34%) | 155 (1.3%) |
| APPENDECTOMY | 634 (1.32%) | 147 (1.2%) |
| OTHER THERAPEUTIC PROCEDURES ON MUSCLES AND TENDONS | 629 (1.31%) | 154 (1.3%) |
| COLORECTAL RESECTION | 609 (1.27%) | 127 (1.1%) |
| INSERTION, REVISION, REPLACEMENT, REMOVAL OF CARDIAC PACEMAKER OR CARDIOVERTER/DEFIBRILLATOR | 601 (1.25%) | 128 (1.1%) |
| ABORTION (TERMINATION OF PREGNANCY) | 587 (1.22%) | 162 (1.4%) |
| TREATMENT, FRACTURE OR DISLOCATION OF HIP AND FEMUR | 570 (1.19%) | 155 (1.3%) |
| OTHER OR GASTROINTESTINAL THERAPEUTIC PROCEDURES | 569 (1.19%) | 124 (1%) |
| OPEN PROSTATECTOMY | 554 (1.15%) | 140 (1.2%) |
| DIAGNOSTIC BRONCHOSCOPY AND BIOPSY OF BRONCHUS | 550 (1.15%) | 131 (1.1%) |
| NEPHRECTOMY, PARTIAL OR COMPLETE | 526 (1.1%) | 124 (1%) |