Table 1.

Characteristics of the Sample

Variable	All (N=7093)	Non-Hispanic White (N=6469)	Black/African-American (N=624)	P
Age
Mean (Standard Deviation)	50.9 (15.6)	51.3 (15.6)	47.5 (15.2)	0.02
Sleep Disturbance
Yes (%)	18.86	18.36	24.04	0.47
Daytime Fatigue
Yes (%)	21.33	20.93	25.48	0.72
Perceived Racism
Worse (%)	4.78	3.25	20.67	<0.001
Sex
Female (%)	60.59	59.92	67.63	0.44
Education
Less than High School (%)	5.85	5.15	13.14	0.002
High School Graduate (%)	31.71	31.78	30.93
Some College (%)	30.31	30.16	31.89
College Graduate (%)	32.13	32.91	24.04
Income
< $10,000 (%)	3.09	2.63	7.85	<0.001
$10,000–$15,000 (%)	4.54	4.14	8.65
$15,000–$20,000 (%)	5.94	5.38	11.7
$20,000–$25,000 (%)	9.25	8.55	16.51
$25,000–$35,000 (%)	15.49	15.38	16.67
$35,000–$50,000 (%)	17.86	18.24	13.94
$50,000–$75,000 (%)	19.77	20.44	12.82
$75,000 + (%)	24.07	25.24	11.86
Employment
Employed (%)	54.41	55.08	47.44	<0.001
Self-Employed (%)	7.6	7.73	6.25
Unemployed <1 Year (%)	2.02	1.86	3.69
Unemployed >1 Year (%)	2.06	1.70	5.77
Homemaker (%)	6.82	7.08	4.17
Student (%)	1.89	1.76	3.21
Retired (%)	20.46	20.82	16.67
Unable to Work (%)	4.75	3.97	12.82
Marital Status
Married	64.83%	67.16%	43.36%	<0.001
Divorced	8.97%	8.55%	12.84%
Widowed	5.23%	5.27%	4.89%
Separated	1.06%	0.88%	2.66%
Never Married	16.96%	15.28%	32.41%
Unmarried	2.94%	2.85%	3.85%
Depressed Mood
Mean (Standard Deviation)	1.25 (2.92)	1.20 (2.86)	1.71 (3.46)	0.10