Demographic data for total study population and the smoking and nonsmoking groups.
| Demographic Data | Total (N = 152) | Nonsmoker (n = 121) | Smoker (n = 31) | P Value |
| Age at injury, y | 0.078a | |||
| 15–29 | 17 (11.1%) | 12 (9.9%) | 5 (16.1%) | |
| 30–44 | 18 (11.8%) | 11 (9.1%) | 7 (22.6%) | |
| 45–59 | 67 (44.1%) | 53 (43.8%) | 14 (45.2%) | |
| 60–74 | 38 (25%) | 35 (28.9%) | 3 (9.7%) | |
| >75 | 12 (7.9%) | 10 (8.3%) | 2 (6.5%) | |
| Sex | 0.173a | |||
| Men | 113 (74.3%) | 87 (71.9%) | 26 (83.9%) | |
| Women | 39 (25.7%) | 34 (28.1%) | 5 (16.1%) | |
| Race (N = 151) | 0.435a | |||
| White | 106 (70.2%) | 86 (71.7%) | 20 (64.5%) | |
| Black | 37 (24.5%) | 27 (22.5%) | 10 (32.3%) | |
| Asian | 5 (3.3%) | 5 (4.2%) | 0 (0.0%) | |
| Other | 3 (2.0%) | 2 (1.7%) | 1 (3.2%) | |
| Body mass index | 27.4 ± 5.7 | 27.6 ± 5.8 | 27.1 ± 5.5 | 0.730b |
| Diabetes (N = 134) | 0.323a | |||
| No | 110 (82.1%) | 88 (72.7%) | 22 (71.0%) | |
| Yes | 24 (17.9%) | 17 (26.3%) | 7 (29.0%) | |
| Other injury | 0.402a | |||
| No | 121 (79.6%) | 98 (70.3%) | 23 (71.0%) | |
| Yes | 31 (20.4%) | 23 (29.7%) | 8 (29.0%) | |
| Traumatic brain injury (N = 125) | 0.229a | |||
| No | 107 (85.6%) | 85 (70.3%) | 22 (71.0%) | |
| Yes | 18 (14.4%) | 12 (29.7%) | 6 (29.0%) | |
| Rehabilitation length of stay, d | 31.0 ± 20.1 | 31.8 ± 21.4 | 27.9 ± 13.9 | 0.350b |
| No. of rehospitalizations | 0.3 ± 0.7 | 0.3 ± 0.6 | 0.5 ± 1.2 | 0.180b |
| Days of rehospitalization | 2.3 ± 11.9 | 2.2 ± 12.5 | 2.7 ± 9.3 | 0.830b |