Research Article

Epidemiology of Orthopedic Fractures and Other Injuries among Inpatients Admitted due to Traffic Accidents: A 10-Year Nationwide Survey in Taiwan

Table 3

Individual and cluster differences of orthopedic fractures analyzed by the multiple logistic regression and distributions of their major combined injuries.

Independent factorsFractures of upper limbs (3)Fracture of lower limbs (4)Fracture of trunk (2)
AOR (95% CI)AOR (95% CI)AOR (95% CI)

Gender
 Female1.01.01.0
 Male0.999 (0.997, 1.001)1.003 (1.001, 1.005)1.006 (1.004, 1.008)
Age stratum
 <18 y/o0.982 ( 0.978, 0.987)1.055 (1.050, 1.059)0.967 (0.963, 0.970)
 18–29 y/o1.01.01.0
 30–49 y/o1.037 (1.034, 1.040)0.988 (0.985, 0.991)1.070 (1.067, 1.072)
 50–64 y/o1.061 (1.057, 1.064)0.998 (0.995, 1.001)1.130 (1.127, 1.133)
 ≥65 y/o0.999 (0.995, 1.002)1.047 (1.043, 1.050)1.135 (1.132, 1.139)
Socioeconomic level
 Normal population1.01.01.0
 Low-income population0.991 (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 hospital1.059 (1.016, 1.104)1.070 (1.036, 1.105)1.035 (1.022, 1.049)
 District hospital1.01.01.0

Combined injuriesIncidence (%), 95% CIIncidence (%), 95% CIIncidence (%), 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)

AOR: adjusted odds ratio; 95% CI: 95% confidence interval.