Table 2.

Univariate and multivariate Poisson regression analysis of injury mortality

	Univariate model (95% CI)			Multivariate model (95% CI)
Factor	IRR	CI	p Value	IRR	CI	p Value
Gender
Female	1*	1.96 to 3.61	<0.001	1*	2.22 to 4.17	<0.001
Male	2.66			3.04
Age groups
1–14	1*	1.22 to 2.74	0.004	1*	0.38 to 2.52	0.972
15–34	1.83	1.96 to 4.53	<0.001	0.98	0.48 to 3.75	0.582
35–64	2.98	5.46 to 12.33	<0.001	1.34	1.01 to 7.93	0.048
65+	8.20			2.83
Occupation
Student	1*	3.05 to 16.35	<0.001	1*	1.81 to 9.42	<0.001
Farming	5.14	4.13 to 14.73	<0.001	4.13	3.25 to 16.66	<0.001
Casual	7.80	2.79 to 9.46	<0.001	7.36	3.26 to 22.48	<0.001
Unemployed	7.06	17.79 to 66.70	<0.001	8.57	12.53 to 63.71	<0.001
Retired	34.45			28.26
Marital status
Single (>15 years)	1*	1.31 to 2.91	<0.001	1*	0.64 to 1.83	0.776
Ever married	1.96	0.35 to 0.90	0.016	1.08	0.59 to 3.57	0.423
Children (<15 years)	0.56			1.45
Education
Primary	1*	1.11 to 2.00	0.007	1*	0.87 to 1.79	0.230
No-formal	1.49	0.22 to 1.67	0.339	1.25	0.21 to 1.62	0.306
Secondary	0.61	1.00 to 10.04	0.050	0.59	0.37 to 3.86	0.769
Tertiary	3.16			1.19
Household SES
High	1*
Medium	1.43	0.85 to 2.39	0.180
Low	1.58	0.95 to 2.60	0.081

1*, Reference group.

IRR, incidence risk ratios; SES, socioeconomic status;