Table 1. Sample Descriptive Statistics.

	Full Sample (N=11,329)^a		Whites (N=7,844)		Blacks (N=3,485)
Variable	Mean/Proportion	SD	Mean/Proportion	SD	Mean/Proportion	SD	p-value^b
Body mass index (kg/m²)	27.44	5.81	26.66	5.38	29.28	6.35	<0.001
Self-rated health (1=excellent, 5=poor)	2.39	1.04	2.27	1.01	2.69	1.05	<0.001
Completed education
<High school	0.21	-	0.16	-	0.33	-	<0.001
High school or GED	0.40	-	0.39	-	0.42	-
Some college	0.20	-	0.21	-	0.17	-
Bachelor's degree or higher	0.19	-	0.24	-	0.07	-
Total household income	45,012	60,620	52,375	69,175	26,907	21,988	<0.001
Total household wealth	174,685	694,870	228,772	810,089	41,697	177,838	<0.001
Proportion waves low income^c	0.20	0.31	0.12	0.23	0.39	0.38	<0.001
Proportion waves high income^c	0.20	0.30	0.26	0.32	0.06	0.17	<0.001
Proportion waves low wealth^c	0.20	0.31	0.12	0.25	0.38	0.37	<0.001
Proportion waves high wealth^c	0.20	0.33	0.27	0.36	0.03	0.12	<0.001
Gender (1=female)	0.54	-	0.52	-	0.61	-	<0.001
Age (in years)	46.29	14.35	47.22	14.86	43.99	12.71	<0.001
Death (1=died)	0.06	-	0.06	-	0.06	-	0.251
Nonresponse (1=nonresponder)	0.05	-	0.05	-	0.07	-	<0.001
Total number respondent observations	6.20	1.81	6.34	1.78	5.88	1.83	<0.001
Residence in South (1=South)	0.42	-	0.31	-	0.70	-	<0.001

Sample size based on self-rated health analytic sample, with exception of BMI measure (N=9,057)

p-value provided for the difference between Blacks and Whites; two-tailed test

for descriptive statistics, proportion of waves in which respondent was high/low income/wealth was calculated at respondent's final observation