Table 1.

Characteristics of hospitalized persons aged 18+ years with a hepatitis C virus infection recorded as principal or secondary diagnosis code, Nationwide Inpatient Sample, 2004–2011

Demographic factors	Percent (SE)				P for trend
	2004–2005	2006–2007	2008–2009	2010–2011
Estimated no. of hospitalizations	850 490	979 848	1 054 970	1 178 633
Mean age (years) at admission (standard error)	50.0 (0.2)	50.8 (0.2)	51.8 (0.2)	52.5 (0.2)	<0.0001
Age at admission in groups
18–34	8.3 (0.3)	8.0 (0.4)	8.0 (0.3)	8.4 (0.3)	0.75
35–44	20.7 (0.4)	17.0 (0.5)	13.2 (0.3)	11.1 (0.3)	<0.0001
45–54	43.6 (0.3)	43.6 (0.4)	41.0 (0.4)	3 7.4 (0.4)	<0.0001
55–64	17.0 (0.3)	21.6 (0.4)	27.4 (0.4)	32.4 (0.5)	<0.0001
≥65	10.3 (0.3)	9.8 (0.3)	10.4 (0.3)	10.7 (0.3)	0.14
Male	61.6 (0.3)	62.6 (0.4)	62.4 (0.3)	62.5 (0.3)	0.11
Race
White	59.9 (1.4)	57.1 (1.5)	59.2 (1.3)	57.4 (1.7)	0.40
African American	22.1 (1.1)	24.1 (1.3)	22.0 (1.1)	24.6 (1.2)	0.24
Hispanic	13.0 (0.9)	14.1 (1.2)	12.7 (0.9)	12.9 (1.1)	0.67
Other	5.0 (0.8)	4.7 (0.6)	6.1 (0.6)	5.1 (0.6)	0.07
Health insurance
Medicare	30.1 (0.5)	30.2 (0.7)	30.8 (0.5)	32.2 (0.6)	0.003
Medicaid	31.8 (0.9)	30.2 (0.9)	32.1 (0.7)	33.9 (1.2)	0.07
Private	21.7 (0.6)	19.3 (0.8)	19.3 (0.6)	16.9 (0.7)	<0.0001
Other	16.3 (0.7)	20.2 (1.5)	17.9 (0.8)	17.0 (0.8)	0.97
Region
Northeast	20.8 (2.1)	20.5 (2.1)	23.5 (2.3)	24.6 (2.7)	0.20
Midwest	16.6 (1.5)	16.7 (1.7)	16.7 (1.7)	16.4 (1.9)	0.95
South	38.7 (2.2)	39.5 (2.8)	36.3 (2.4)	36.3 (2.5)	0.29
West	23.9 (1.9)	23.3 (2.1)	23.5 (1.9)	22.8 (1.9)	0.72
Teaching hospital	52.6 (2.2)	59.0 (2.4)	58.6 (2.2)	59.1 (2.3)	0.06
In-hospital death	3.7 (0.1)	3.2 (0.1)	2.9 (0.1)	2.7 (0.1)	<0.0001