Demographics and crash profile
| Total N=680 | Helmet N=230 (33.8%) | No helmet N=450 (66.2%) | |
| Age (median) (IQR) | 13 (9.0–14) | 11 (8.0–14) | 13 (9.0–14) |
| Sex | |||
| Male | 485 (71.3%) | 187 (81.3%) | 298 (66.2%) |
| Female | 195 (28.7%) | 43 (18.7%) | 152 (33.8%) |
| Race | |||
| White | 633 (92.8%) | 220 (95.7%) | 413 (91.8%) |
| Black | 37 (5.4%) | 9 (3.9%) | 26 (5.8%) |
| Other | 6 (0.9%) | 1 (0.4%) | 5 (1.1%) |
| Unknown | 6 (0.9%) | 0 (0.0%) | 6 (1.3%) |
| Ethnicity | |||
| Hispanic | 21 (3.1%) | 5 (2.2%) | 16 (3.6%) |
| Insurance type | |||
| Public | 291 (41.1%) | 81 (35.2%) | 180 (40.0%) |
| Private | 370 (52.3%) | 132 (57.4%) | 238 (52.9%) |
| None/Self-pay | 29 (4.1%) | 10 (4.4%) | 19 (11.3%) |
| Military | 18 (2.5%) | 6 (2.6%) | 12 (2.7%) |
| Vehicle type | |||
| ATV | 510 (75.0%) | 111 (48.3%) | 399 (88.7%) |
| Dirt bike | 170 (25.0%) | 119 (51.7%) | 51 (11.3%) |
| Vehicle station | |||
| Driver | 470 (69.1%) | 208 (90.4%) | 262 (58.2%) |
| Passenger | 210 (30.9%) | 22 (9.6%) | 188 (41.8%) |
| Mechanism | |||
| Rollover | 254 (37.4%) | 59 (25.7%) | 195 (43.3%) |
| Crash during jump | 21 (3.1%) | 15 (6.5%) | 6 (1.3%) |
| Ejected without collision | 176 (25.9%) | 60 (26.1%) | 116 (25.8%) |
| Collision with vehicle | 81 (11.9%) | 39 (17.0%) | 42 (9.3%) |
| Collision with object | 148 (21.7%) | 57 (24.8%) | 91 (20.2%) |
| Location | |||
| Home/Yard | 384 (56.5%) | 135 (58.7%) | 249 (55.3%) |
| Racetrack | 21 (3.1%) | 9 (3.9%) | 12 (2.7%) |
| Street | 139 (20.4%) | 52 (22.6%) | 87 (19.3%) |
| Farm/Field | 112 (16.4%) | 27 (11.7%) | 85 (18.9%) |
| Unspecified | 24 (3.5%) | 7 (3.0%) | 17 (3.8%) |
| Transport to hospital | |||
| Ground | 399 (58.7%) | 149 (64.8%) | 250 (55.6%) |
| Helicopter | 244 (35.9%) | 64 (27.8%) | 180 (40.0%) |
| Private | 37 (5.4%) | 17 (7.4%) | 20 (4.4%) |
| Arrival from | |||
| Scene | 245 (36.0%) | 84 (36.5%) | 161 (35.8%) |
| Outside hospital | 430 (63.2%) | 144 (62.6%) | 286 (63.6%) |
| Urgent care/Clinic | 5 (0.7%) | 2 (0.9%) | 3 (0.7%) |