| Independent factors | Fractures of upper limbs (3) | Fracture of lower limbs (4) | Fracture of trunk (2) | AOR (95% CI) | AOR (95% CI) | AOR (95% CI) |
| Gender | | | | Female | 1.0 | 1.0 | 1.0 | Male | 0.999 (0.997, 1.001) | 1.003 (1.001, 1.005) | 1.006 (1.004, 1.008) | Age stratum | | | | <18 y/o | 0.982 ( 0.978, 0.987) | 1.055 (1.050, 1.059) | 0.967 (0.963, 0.970) | 18–29 y/o | 1.0 | 1.0 | 1.0 | 30–49 y/o | 1.037 (1.034, 1.040) | 0.988 (0.985, 0.991) | 1.070 (1.067, 1.072) | 50–64 y/o | 1.061 (1.057, 1.064) | 0.998 (0.995, 1.001) | 1.130 (1.127, 1.133) | ≥65 y/o | 0.999 (0.995, 1.002) | 1.047 (1.043, 1.050) | 1.135 (1.132, 1.139) | Socioeconomic level | | | | Normal population | 1.0 | 1.0 | 1.0 | Low-income population | 0.991 (0.984, 0.998) | 1.019 (1.012, 1.026) | 1.008 (1.003, 1.014) | Hospital level | | | | Medical center | 1.051 (0.964, 1.146) | 1.107 (1.035, 1.183) | 1.053 (1.026, 1.082) | Regional hospital | 1.059 (1.016, 1.104) | 1.070 (1.036, 1.105) | 1.035 (1.022, 1.049) | District hospital | 1.0 | 1.0 | 1.0 |
| Combined injuries | Incidence (%), 95% CI | Incidence (%), 95% CI | Incidence (%), 95% CI |
| Fracture of skull, intracranial injury (1) | 19% (18.9, 19.1) | 14% (13.9, 14.1) | 26% (25.8, 26.2) | Contusion with intact skin surface (15) | 16% (15.9, 16.1) | 12% (11.9, 12.1) | 25% (24.8, 25.2) | Superficial injury (14) | 17% (16.9, 17.1) | 13% (12.9, 13.1) | 18% (17.8, 18.2) | Open wound of head, neck, and trunk (9) | 11% (10.9, 11.1) | 10% (9.9, 10.1) | 12% (11.9, 12.1) | Open wound of lower limb (11) | 5% (4.9, 5.1) | 10% (9.9, 10.1) | 5% (4.9, 5.1) | Certain traumatic complications and unspecified injuries (20) | 6% (5.9, 6.1) | 6% (5.9, 6.1) | 9% (8.8, 9.2) | Open wound of upper limb (10) | 5% (4.9, 5.1) | 3% (2.9, 3.1) | 3% (2.9, 3.1) |
|
|