Table 1.

Sample characteristics of participants 18–49 years in the United States, by travel status, demographic and access-to-care variables – NHIS 2010.

Characteristic		All adults		Traveled^a		Not traveled
Characteristic		Sample	Weighted %	Sample	Weighted %	Sample	Weighted %
Total		14,755		5561	36.6	13,949	93.0
Age
	18–25	3239	25.2	1107	21.6	969	27.4^b
	26–39	6783	42.4	2770	46.8	1941	39.8
	40–49	4733	32.4	1684	31.6	2246	32.8
Sex
	Male	6379	49.8	2756	52.9	3983	48.0^b
	Female	8016	50.2	2805	47.1	5211	52.0
Race/ethnicity
	Non-hispanic White	7405	62.3	2663	59.3	4742	64.0^b
	Non-hispanic Black	2395	12.8	506	7.6	1889	15.7
	Hispanic	3597	17.8	1580	21.9	2017	15.5
	Asian	1045	5.2	715	9.7	330	2.6
	Other	313	1.9	97	1.5	216	2.2
Marital status
	Married	6289	49.0	2788	57.0	3501	44.4^b
	Widowed/divorced/separated	1975	9.0	589	6.8	1386	10.2
	Never married	6469	42.0	2180	36.2	4289	45.4
Education
	High school or less	5812	38.3	1488	25.9	4324	45.5^b
	Above high school	8901	61.7	4067	74.1	4834	54.5
Employment status
	Employed	10,515	72.2	4223	76.8	6292	69.5^b
	Not employed	4233	27.8	1335	23.2	2898	30.5
Poverty level
	At or above poverty	10,562	83.1	4373	88.6	6189	79.9^b
	Below poverty	2997	16.9	797	11.4	2200	20.1
Region
	Northeast	2161	16.5	824	16.9	1337	16.3^b
	Midwest	3197	23.2	1043	20.5	2154	24.7
	South	5427	35.5	1862	31.7	3565	37.7
	West	3970	24.8	1832	30.9	2138	21.3
US born
	Yes	11,048	80.5	3546	70.3	7502	86.3^b
	No	3701	19.5	2013	29.7	1688	13.7
Physician contacts within past year
	None	3976	26.0	1307	22.1	2669	28.2^b
	1	2652	18.1	1011	18.2	1641	18.0
	2–3	3696	25.5	1517	28.1	2179	24.0
	4–9	2828	19.7	1146	21.5	1682	18.7
	≥10	1576	10.7	571	10.1	1005	11.1
Hospitalization within past year
	Yes	1093	7.1	348	5.9	745	7.8^b
	No	13,658	92.9	5211	94.1	8447	92.2
Place of routine health care
	Clinic or health center	3264	19.7	1134	18.5	2130	20.4^b
	Doctor’s office or HMO^c	8128	59.4	3239	62.6	4889	57.6
	Some other place	563	3.4	167	2.6	396	3.8
	None	2685	17.5	987	16.3	1698	18.2
Health insurance
	Yes	10,765	75.0	4343	80.2	6422	72.0^b
	No	3941	25.0	1201	19.8	2740	28.0
High-risk behavior with HepB indication^d
	Yes	1161	7.1	389	6.3	772	7.6^b
	No	13,517	92.9	5145	93.7	8372	92.4
Ever lived with a hepatitis patients
	Yes	552	4.0	231	4.5	321	3.7
	No	13,843	96.0	5164	95.5	8679	96.3
Persons with chronic liver diseases
	Yes	120	0.7	43	0.7	77	0.7
	No	14,622	99.3	5516	99.3	9106	99.3
Influenza vaccination
	Yes	2096	24.5	882	28.2	1214	22.4^b
	No	6818	75.5	2445	71.8	4373	77.6
Ever received hepatitis B vaccination
	Yes	5645	41.7	2447	48.4	3198	37.9^b
	No	8134	58.3	2706	51.6	5428	62.1

Persons from developed countries who travel to developing countries (most of developing countries with high or intermediate HAV endemicity) are at substantial risk for acquiring hepatitis A. Persons traveled outside the United States to countries other than Europe, Japan, Australia, New Zealand, or Canada were considered having traveled to countries with high or intermediate HAV endemicity.

Significant difference between travelers and non travelers (by chi-square test, P < 0.05).

Health maintenance organization.

Includes persons who considered themselves at high risk for HIV infection, persons who reported having a sexually transmitted disease other than HIV/AIDS during the previous 5 years, and persons who reported any one of the following risk factors: hemophilia with receipt of clotting factor concentrates, men who have sex with men, injecting street drugs, trading sex for money or drugs, testing positive for HIV, or having sex with someone with any of these risk factors.