Table 1. Characteristics of the study population.
| Workplace injury | Injury at other places | Random controls | |
|---|---|---|---|
| N (%) | |||
| Total | 80712 | 161424 | 161424 |
| Female | 33925 (42.03%) | 90891 (56.3%) | 91960 (57.0%) |
| Race | |||
| White | 47108 (58.4%) | 99818 (61.8%) | 105667 (65.5%) |
| Black | 16119 (20.0%) | 28942 (17.9%) | 35623 (22.1%) |
| Hispanic | 14782 (18.3%) | 27890 (17.3%) | 14518 (9.0%) |
| Asian or Pacific Islander | 586 (0.7%) | 927 (0.6%) | 1385 (0.9%) |
| Native American | 135 (0.2%) | 230 (0.1%) | 171 (0.1%) |
| Other | 1982 (2.5%) | 3617 (2.2%) | 4060 (2.5%) |
| Insurance | |||
| Medicaid | 4595 (5.7%) | 79547 (49.3%) | 70858 (43.9%) |
| Medicare | 6598 (8.2%) | 16073 (10.0%) | 16081 (10.0%) |
| Private | 12653 (15.7%) | 41549 (25.7%) | 48444 (30.0%) |
| Self-pay | 18068 (22.4%) | 14315 (8.9%) | 12965 (8.0%) |
| No charge | 1099 (1.4%) | 2865 (1.8%) | 4886 (3.0%) |
| Other | 37692 (46.7%) | 7065 (4.4%) | 7183 (4.5%) |
| Missing | 7 (0.01%) | 21 (0.01%) | 1007 (0.6%) |
| Most frequent residence area (zipcode) | Broward County (33311) (1.0%) | Jacksonville (33209) (1.0%) | Jacksonville (32209) (6.1%) |
| median (IQR) | |||
| Age | 37 (26, 47) | 56 (39, 71) | 57 (41, 68) |
| Years of prior medical history available | 4 (4, 7) | 5 (4, 7) | 6 (4, 7) |
| Charlson’s comorbidity index | 0 (0, 1) | 1 (0, 3) | 0 (0, 1) |
| Area deprivation index | 106.3 (101.1, 109.8) | 105.1 (98.8, 109.2) | 104.6 (99.2, 108.4) |
| Year of diagnosis | 2012 (2010, 2013) | 2013 (2011, 2014) | 2012 (2010, 2013) |