Table 1.

Demographic information of survey respondents

Participant Characteristics (n = 8752)	% Total	% Males	% Females
Age
18-39	32.42	31.63	33.08
40-64	49.83	50.66	49.83
>65	17.76	17.70	17.80
Race
White	73.14	75.44	71.20
African American	20.65	18.63	22.35
Latino/Hispanic	6.21	5.93	6.45
Income Threshold
Above 2×	76.23	80.95	72.24
Below 2×	23.77	19.05	27.76
Race × Income Interaction
White, Not Poor	62.21	66.16	58.88
White, Poor	10.93	9.28	12.32
AA, Not Poor	11.23	11.73	10.81
AA, Poor	9.42	6.90	11.54
Latino, Not Poor	2.79	3.07	2.55
Latino, Poor	3.43	2.86	3.90
Education
< High school graduate	7.01	7.31	6.76
High school graduate	30.63	28.56	32.36
Some college	20.37	19.91	20.76
College graduate	25.55	25.77	25.36
Post college	16.44	18.44	14.76
Employment Status
Employed	63.77	68.09	60.14
Unemployed	12.65	12.25	12.99
Retired	17.66	17.95	17.42
Disabled	5.91	1.71	9.45
Marital Status
Married	58.37	62.50	54.89
Living with partner	6.79	8.23	5.58
Single	19.97	19.12	20.69
Widow	6.70	3.88	9.08
Other	8.16	6.27	9.76
Sleep Quality
1 – Restless	9.83	8.37	11.07
2	8.26	7.01	9.31
3	22.99	21.60	24.16
4	27.84	30.80	25.36
5 – Restful	31.07	32.22	30.11
General Health
Excellent	33.98	33.93	34.02
Good	47.75	48.43	47.18
Fair	14.67	14.36	14.93
Poor	3.60	3.28	3.88
Mental Illness
Absent	82.12	87.18	77.86
Present	17.88	12.82	22.14
Body Mass Index
≤25	39.16	29.74	47.08
25-30	36.10	44.53	29.00
>30	24.74	25.72	29.91
Stress Level
Low (1-2)	16.90	20.83	13.59
Mild (3-4)	20.33	21.80	19.09
Moderate (5-6)	28.57	27.93	29.11
High (7-8)	22.56	21.42	23.51
Very high (9-10)	11.64	8.02	14.70
Smoking Status
No	80.27	79.98	80.51
Yes	19.73	20.02	19.49
Children
No children	64.12	67.69	61.12
≥1 children	35.88	32.31	38.88
Sleep Debt
No sleep debt (0 or surplus)	46.37	52.48	41.22
Sleep debt(1-5 hours)	53.63	47.52	58.78