Matched patient baseline demographics.
| Characteristic | Total (n = 121) | Non-WC (n = 92) | WC (n = 29) | P Valuea |
| Age, mean ± SD | 53.5 ± 9.4 | 54.6 ± 9.7 | 50.0 ± 7.4 | 0.023 |
| <50 y | 34.7% (42) | 31.5% (29) | 44.8% (13) | |
| 50–64 y | 62.0% (75) | 64.1% (59) | 55.2% (16) | |
| >65 y | 3.3% (4) | 4.3% (4) | 0.0% (0) | |
| Gender | 0.044 | |||
| Female | 36.4% (44) | 41.3% (38) | 20.7% (6) | |
| Male | 63.6% (77) | 58.7% (54) | 79.3% (23) | |
| Ethnicity | <0.001 | |||
| White | 78.5% (95) | 87.0% (80) | 51.7% (15) | |
| Nonwhite | 21.5% (26) | 13.0% (12) | 48.3% (14) | |
| Body mass index | 0.437 | |||
| <30 kg/m2 | 54.5% (66) | 56.5% (52) | 48.3% (14) | |
| ≥30 kg/m2 | 44.5% (55) | 43.5% (40) | 51.7% (15) | |
| Smoking status | 0.078 | |||
| Nonsmoker | 88.4% (107) | 91.3% (84) | 79.3% (23) | |
| Smoker | 11.6% (14) | 8.7% (8) | 20.7% (6) | |
| Diabetic status | 0.423 | |||
| Nondiabetic | 90.1% (109) | 91.3% (84) | 86.2% (25) | |
| Diabetic | 9.9% (12) | 8.7% (8) | 13.8% (4) | |
| American Society of Anesthesiologists Score | 0.794 | |||
| <2 | 84.3% (102) | 84.8% (80) | 82.8% (24) | |
| ≥2 | 15.7% (19) | 15.2% (14) | 17.2% (5) | |
| Charlson Comorbidity Index Score | 0.331 | |||
| ≤1 | 23.6% (29) | 26.1% (24) | 17.2% (32) | |
| >1 | 76.4% (92) | 73.9% (68) | 82.8% (12) | |
| Duration of symptoms | 0.005 | |||
| <6 mo | 20.4% (22) | 19.5% (16) | 23.1% (6) | |
| 6 mo to 1 y | 21.3% (23) | 14.6% (12) | 42.3% (11) | |
| >1 y | 58.3% (63) | 65.9% (54) | 34.6% (9) | |
| Time to surgery, mo, mean ± SD, mo (n) | 4.9 ± 10.4 (114) | 4.7 ± 11.4 (92) | 5.9 ± 4.1 (22) | 0.628 |
Data provided as % (n) unless otherwise indicated. Boldface indicates statistical significance.
aP value calculated using χ 2 test or Student’s t test.
WC, workers’ compensation.