Table 1.
Baseline Characteristic of Study Population (n = 1307)
| Variable | Missing | |
|---|---|---|
| Demographics and intraoperative variables | ||
| Age, median (IQR) | 28 (22-38) | |
| Sex | ||
| Female | 723 (55.3%) | |
| Male | 584 (44.7%) | |
| ASA Class | ||
| 1-2 Mild disturbance | 1164 (89.1%) | |
| 3-4 Severe disturbance | 143 (10.9%) | |
| Body mass index | 29 (25-34%) | 2 (0.15%) |
| Dependent functional status | 29 (2.0%) | |
| Dyspnea | 20 (1.4%) | |
| Anesthesia | 9 (0.62%) | |
| General | 1248 (96.2%) | |
| Spinal | 59 (3.8%) | |
| Operative time, median (IQR) | 80 (56-109) | |
| Concomitant lateral release | 104 (7.9%) | |
| Comorbidities | ||
| Diabetes | 50 (3.8%) | |
| Smoking | 254 (19.4%) | |
| Chronic obstructive pulmonary disease | 11 (0.8%) | |
| Medicated hypertension | 146 (11.2%) | |
| Long-term steroid use | 12 (0.9%) | 2 (0.15%) |
| Overnight admission | ||
| Yes | 221 (16.9%) | |
| No | 1086 (83.1%) |
ASA, American Society of Anesthesiologists; IQR, interquartile range.