Table 1. Descriptive Statistics for the Independent Variables in the NLS-MW.

Predictors	White				Black
	M	SD	Range	Observations	M	SD	Range	Observations
Age	67.50	6.33	52 to 81	10,782	67.23	6.22	52 to 81	3,629
Birth cohort
1922 to 1927	.38	.49	0 to 1	10,782	.34	.47	0 to 1	3,629
1923 to 1932	.33	.47	0 to 1	10,782	.37	.48	0 to 1	3,629
1933 to 1937	.30	.46	0 to 1	10,782	.29	.46	0 to 1	3,629
Physical limitations	3.05	3.50	0 to 21	10,763	4.43	4.06	0 to 21	3,625
SES
Less than high school	1.1	.31	0 to 1	10,754	.36	.48	0 to 1	3,624
Some high school	.17	.38	0 to 1	10,754	.33	.47	0 to 1	3,624
High school graduate or higher	.72	.50	0 to 1	10,754	.31	.42	0 to 1	3,624
Income ($)	21,341	17,371	0 to 194,897	10,681	12,031	12,258	0 to 151,007	3,563
Not homeowner	.16	.36	0 to 1	10,767	.34	.48	0 to 1	3,623
Family status
Never married	.03	.18	0 to 1	10,708	.07	.25	0 to 1	3,606
Married	.60	.49	0 to 1	10,708	.30	.46	0 to 1	3,606
Divorced	.11	.31	0 to 1	10,708	.22	.41	0 to 1	3,606
Widowed	.26	.44	0 to 1	10,708	.41	.49	0 to 1	3,606
Childless	.09	.29	0 to 1	10,711	.08	.27	0 to 1	3,596
High parity (four or more children)	.37	.48	0 to 1	10,782	.60	.49	0 to 1	3,629
Teenage first birth	.21	.40	0 to 1	10,698	.51	.50	0 to 1	3,595
Last birth age 35 or older	.21	.40	0 to 1	10,698	.30	.46	0 to 1	3.595

Note; NLS-MW = National Longitudinal Survey of Mature Women; SES = socioeconomic status. SD = standard deviation. Distributions are based on nonimputed repeated observations of NLS-MW respondents. All black-white differences are significant at p < .05, except birth cohort 1933 to 1937.