Table 1.
Demographics data for the study population separated by cohort
| Demographic data | |||
|---|---|---|---|
| Brace | No brace, n (%) | P | |
| Sex, n (%) | |||
| Male | 337 (40.26) | 17 (36.17) | 0.5774 |
| Female | 500 (59.74) | 30 (63.83) | |
| Diabetes, n (%) | 40 (5.35) | 1 (2.94) | 1.0000 |
| COPD, n (%) | 4 (0.54) | 0 (0.0) | 1.0000 |
| CAD, n (%) | 6 (0.80) | 0 (0.0) | 1.0000 |
| Obesity, n (%) | 12 (1.61) | 0 (0.0) | 1.0000 |
| CHF, n (%) | 1 (0.13) | 0 (0.0) | 1.0000 |
| HTN, n (%) | 126 (16.87) | 5 (14.71) | 1.0000 |
| Smoker, n (%) | 118 (14.22) | 5 (11.11) | 0.5594 |
| Race, n (%) | |||
| Asian | 14 (1.67) | 0 (0.0) | 0.5195 |
| Black | 107 (12.78) | 10 (21.28) | |
| White | 677 (80.88) | 37 (78.72) | |
| Hispanic/Latino | 11 (1.32) | 0 (0.0) | |
| Unknown | 17 (2.03) | 0 (0.0) | |
| Others | 7 (0.84) | 0 (0.0) | |
| Pacific Islands | 1 (0.12) | 0 (0.0) | |
| East Indian | 3 (0.36) | 0 (0.0) | |
| ASA grade, n (%) | |||
| ASA 1 | 28 (3.36) | 0 (0.0) | 0.0213 |
| ASA 2 | 539 (64.63) | 26 (55.32) | |
| ASA 3 | 266 (31.89) | 20 (42.55) | |
| ASA 4 | 1 (0.12) | 1 (2.13) | |
| Graft type, n (%) | |||
| Allograft | 34 (4.06) | 0 (0.0) | 0.0004 |
| Autograft | 7 (0.84) | 0 (0.0) | |
| Biomechanical | 400 (47.79) | 9 (19.15) | |
| Allograft + autograft | 0 (0.0) | 1 (2.13) | |
| Autograft + biomechanical | 5 (0.60) | 0 (0.0) | |
| Allograft + biomechanical | 23 (2.75) | 0 (0.0) | |
| None | 368 (43.97) | 37 (78.72) | |
| Pack years, mean (SD) | 19.12 (16.05) | 24.5 (26.55) | 0.5868 |
| Problem list number, mean (SD) | 5.74 (6.15) | 7.40 (7.34) | 0.2513 |
| BMI, mean (SD) | 29.35 (5.91) | 29.48 (5.16) | 0.8825 |
| Age, mean (SD) | 57.11 (13.64) | 60.15 (13.9) | 0.1373 |
COPD – Chronic obstructive pulmonary disease; CAD – Coronary artery disease; CHF – Congestive heart failure; HTN – Hypertension; ASA – American Society of Anesthesiologists; SD – Standard deviation; BMI – Body mass index