Table 1 Baseline patient demographics and clinical characteristicsa
All patients (N = 55,381) | Outpatient (n = 41,326) | Inpatient (n = 14,055) | Standard difference | P Value* | |
|---|---|---|---|---|---|
Female, Sex, No. (%) | 44557 (80.5) | 33616 (81.3) | 10941 (77.8) | 0.087 | < .001 |
Age, mean (SD), y | 51.4 (14.8) | 51.4 (14.6) | 51.3 (15.2) | 0.004 | 0.666 |
BMI, mean (SD) | 30.7 (7.57) | 30.8 (7.56) | 30.3 (7.60) | < .001 | |
Diabetes, No. (%) | 7679 (13.9) | 5554 (13.4) | 2125 (15.1) | -0.048 | < .001 |
Current Smoker, No. (%) | 8030 (14.5) | 5977 (14.5) | 2053 (14.6) | -0.004 | 0.676 |
Dyspnea, No. (%) | 3069 (5.5) | 2203 (5.3) | 866 (6.2) | -0.036 | < .001 |
History of COPD, No. (%) | 1397 (2.5) | 1031 (2.5) | 366 (2.6) | -0.007 | 0.475 |
Congestive Heart Failure, No. (%) | 200 (0.4) | 90 (0.2) | 110 (0.8) | -0.080 | < .001 |
Hypertension, No. (%) | 21412 (38.7) | 16030 (38.8) | 5382 (38.1) | 0.010 | 0.296 |
Disseminated cancer, No. (%) | 382 (0.7) | 232 (0.6) | 150 (1.1) | -0.056 | < .001 |
Steroid use, No. (%) | 1483 (2.7) | 1048 (2.5) | 435 (3.1) | -0.034 | < .001 |
Bleeding disorders, No. (%) | 620 (1.1) | 378 (0.9) | 242 (1.7) | -0.071 | < .001 |
ASA classification, No. (%) | |||||
1 or 2 | 36,372/55266 (65.8) | 27,647/41291 (66.9) | 8725/13975 (62.4) | 0.095 | < .001 |
3, 4, or 5 | 18894/55266 (34.2) | 13644/41291 (33.0) | 5250/13975 (37.6) | -0.095 | |
RVUs, mean (SD) | 15.03 (5.6) | 14.6 (4.8) | 16.18 (7.5) | -0.246 | < .001 |
Operative time, mean (SD), No., min | 113.4 (60.5), 55369 | 106.3 (52.2), 41318 | 134.1 (76.4), 14051 | -0.424 | < .001 |