Table 2.
Elective inpatient vs. outpatient surgery patients
| Inpatient | Outpatient | p-value | |
|---|---|---|---|
| N | 47.8 (744,634) | 52.2 (814,304) | |
| Age | 60.64 (14.64) | 52.80 (16.50) | < 0.001 |
| Sex | < 0.001 | ||
| - Female | 57.5 (428,145) | 59.2 (481,781) | < 0.001 |
| - Male | 42.5 (316,489) | 40.8 (332,522) | |
| Race | < 0.001 | ||
| - White | 68.2 (507,838) | 72.4 (589,913) | |
| - Black | 9.7 (72,518) | 10.1 (82,126) | |
| - Unknown | 18.6 (138,686) | 13.6 (110,871) | |
| ASA class | < 0.001 | ||
| - I | 3.4 (25,319) | 12.6 (102,658) | |
| - II | 41.4 (307,377) | 54.6 (443,203) | |
| - III | 50.4 (374,548) | 30.9 (250,981) | |
| - IV | 4.8 (35,961) | 1.9 (15,200) | |
| - V | 0.0 (3577) | 0.0 (41) | |
| Operative time | 126.28 (64.63) | 77.07 (52.47) | < 0.001 |
| Mortality | 0.5 (3577) | 0.1 (708) | < 0.001 |
| Readmission | < 0.001 | ||
| - No | 0.2 (1491) | 0.2 (1495) | |
| - Null | 94.3 (702,471) | 97.7 (795,832) | |
| - Yes | 5.5 (40,672) | 2.1 (16,977) | |
| Reoperation | < 0.001 | ||
| - No | 97.2 (723,962) | 98.9 (805,181) | |
| - Yes | 2.8 (20,672) | 1.1 (9123) | |
| Vent > 48 h | 0.3 (2534) | 0.0 (171) | < 0.001 |
| Length of stay | 3.07 (3.72) | N/A | < 0.001 |
| Surgical specialty | < 0.001 | ||
| - Cardiac | 3,477 (0.5%) | 118 (< 0.1%) | |
| - General | 242,135 (33%) | 350,697 (43%) | |
| - Gynecology | 61,053 (8.2%) | 114,515 (14%) | |
| - Interventional radiology | 70 (< 0.1%) | 143 (< 0.1%) | |
| - Neurosurgery | 52,515 (7.1%) | 29,060 (3.6%) | |
| - Orthopedics | 249,684 (34%) | 158,374 (19%) | |
| - Otolaryngology | 10,738 (1.4%) | 37,655 (4.6%) | |
| - Plastics | 8,315 (1.1%) | 44,738 (5.5%) | |
| - Thoracic | 17,846 (2.4%) | 1,112 (0.1%) | |
| - Urology | 51,375 (6.9%) | 55,128 (6.8%) | |
| - Vascular | 47,425 (6.4%) | 22,764 (2.8%) |