Table 3.

The univariate and multivariate logistic regression models for early mortality (n = 1163 for all patients)

	Univariate		Multivariate
	Odds ratio (95% CI)	P-value	Odds ratio (95% CI)	P-value
Age	1.02 (1.01, 1.03)	0.007*	—	—
Gender
Male	1.48 (0.81, 2.70)	0.201	—	—
Female	-	—	—	—
Occupation
White collar	0.98 (0.65, 1.50)	0.943	—	—
Blue collar	-	—	—	—
Cause of injury
Traffic accident	-	—	—	—
Fall	2.14 (1.29, 3.56)	0.003*	—	—
Others	1.73 (1.05, 2.85)	0.031*	—	—
ASIA grade
A	30.42 (11.06, 83.68)	<0.001*	64.73 (20.66, 202.78)	<0.001*
B	8.24 (2.49, 27.24)	<0.001*	15.08 (3.86, 58.86)	<0.001*
C	1.85 (0.46, 7.46)	0.389	4.64 (1.07, 20.07)	0.040*
D	-	—	-	—
Segment of injury
C1–3	3.70 (2.02, 6.76)	<0.001*	5.03 (1.84, 13.73)	0.002*
C4–5	1.89 (1.18, 3.03)	0.008*	2.14 (1.13, 4.06)	0.020*
C6–8	-	—	-	—
Cervical surgery
No surgery	-	—	-	—
Anterior	0.05 (0.03, 0.09)	<0.001*	0.03 (0.02, 0.06)	<0.001*
Posterior	0.07 (0.03, 0.20)	<0.001*	0.05 (0.02, 0.18)	<0.001*
Anterior–posterior	0.10 (0.04, 0.28)	<0.001*	0.04 (0.01, 0.14)	<0.001*
Tracheotomy
Yes	9.62 (6.17, 15.00)	<0.001*	3.56 (1.86, 6.81)	<0.001*
No	-	—	-	—
Nutritional status
Malnutrition	10.83 (6.65, 17.62)	<0.001*	—	—
Normal	-	—	—	—

*P < 0.05 indicated that the 95% CI for odds ratio did not include 1.

-, Reference category.

P-value = 0.436 by Hosmer and Lemeshow test implies an acceptable goodness of fit for the multivariate model.