Table 2. Distribution of sociodemographic characteristics of study participants by food security level, (CHIS) 2009 and 2011 (N=22,596).

Sociodemographic indicators	Food secure (58%)	Low food security (26%)	Very low food security (16%)	P
Age, %
18-30	63	23	14	<.0001
31-44	49	32	19
45-65	53	28	19
>65	80	14	6
Sex, %
Men	59	26	15	.2
Women	57	26	16
Education, %
<High school	50	33	17	<.0001
High school	63	23	14
Some college	60	23	17
College	71	16	13
Foreign-born, %
No	62	20	16	<.0001
Yes	52	33	15
Race/ethnicity, %
White	64	19	17	<.0001
Black	56	23	21
Latino	55	30	15
Marital status, %
Married	58	28	14	<.0001
Living w/ partner	46	34	19
Widowed/divorced/separated	56	24	19
Never married	64	21	15
Poverty level, %
<50%	49	31	20	<.0001
50.1-100%	52	29	19
100.1-130%	59	26	15
>130%	67	21	12
Work status, %
Full-time, ≥21 hrs/wk	57	28	15	<.0001
Part-time, 0-20 hrs/wk	54	29	17
Employed, not at work	41	25	34
Unemployed, looking	51	27	22
Unemployed, not looking	63	23	14
Health-related indicators
BMI, %
Underweight	64	21	15	<.0001
Normal weight	64	23	13
Overweight	57	27	16
Obese	54	28	18
Diabetes, %
No	56	26	15	<.1
Yes	51	31	18
Doctor visit in past year, %
No	56	27	16	.4
Yes	59	26	15
Health Insurance, %
No	52	29	19	<.0001
Yes	61	24	14