Table 5.

Factors influencing mortality rate after hospitalization due to injury between 1998 and 2015.

	Overall			Low-Income
Variables	Adjusted OR	95% CI	p Value	Adjusted OR	95% CI	p Value
Incomes
Nonlow-income	Reference			-	-	-
Low-income	1.888	1.766–2.018	<0.001	-	-	-
Gender
Male	1.482	1.451–1.520	<0.001	1.284	1.211–1.379	<0.001
Female	Reference			Reference
Age
1–4	Reference			Reference
5–14	0.501	0.431–0.569	<0.001	0.767	0.620–0.885	0.001
15–24	1.083	0.980–1.186	0.088	1.120	1.013–1.271	0.032
25–44	1.421	1.318–1.554	<0.001	1.338	1.291–1.498	<0.001
45–64	2.125	1.973–2.339	<0.001	2.231	1.997–2.364	<0.001
≥65	5.076	4.452–5.561	<0.001	2.695	2.372–3.196	<0.001
CCI	1.142	1.133–1.142	<0.001	3.299	3.218–3.571	<0.001

Adjusted OR (odds ratio): adjusted variables listed in the table; CI = confidence interval. Hospitalization area had collinearity with level of care, and medical expenses had collinearity with length of stay; Nagelkerke R² = 0.271 (overall), 0.234 (low income).