Table 2.

Mean Statistics for Total Sample and Race/Ethnic Subgroups

	Total sample (N = 69,668 obs.)	White, non-Hispanic (N = 54,178 obs.)	Black, non-Hispanic (N = 9,484 obs.)	Hispanic (N = 6,006 obs.)
Frailty Index (%)	15.972 (0.178)	15.146 (0.169)	20.462 (0.401)	19.938 (0.521)
Age	67.008 (0.178)	67.508 (0.213)	64.620 (0.261)	64.162 (0.535)
Female (yes = 1, no = 0)	0.589 (0.004)	0.581 (0.004)	0.650 (0.010)	0.604 (0.015)
Foreign born (yes = 1, no = 0)	0.074 (0.005)	0.040 (0.003)	0.055 (0.006)	0.515 (0.023)
Socioeconomic status
Education (years)	12.505 (0.074)	12.913 (0.049)	11.541 (0.101)	8.855 (0.342)
Income (Ln)	10.456 (0.022)	10.597 (0.018)	9.848 (0.030)	9.574 (0.069)
Net wealth (/100,000)	1.282 (0.087)	1.497 (0.102)	0.171 (0.028)	0.163 (0.024)
Has long-term care insurance (yes = 1, no = 0)	0.118 (0.005)	0.130 (0.005)	0.068 (0.005)	0.037 (0.004)
Currently receiving pension (yes = 1, no = 0)	0.277 (0.006)	0.296 (0.007)	0.217 (0.011)	0.128 (0.013)
Currently working for pay (yes = 1, no = 0)	0.383 (0.006)	0.383 (0.007)	0.398 (0.013)	0.364 (0.014)
Social support
Married/partnered (yes = 1, no = 0)	0.678 (0.005)	0.709 (0.005)	0.441 (0.013)	0.628 (0.017)
Relative living nearby (yes = 1, no = 0)	0.298 (0.006)	0.296 (0.007)	0.332 (0.014)	0.285 (0.010)
Friend living nearby (yes = 1, no = 0)	0.670 (0.005)	0.681 (0.006)	0.616 (0.013)	0.604 (0.014)
Frequency of interaction/week	1.831 (0.030)	1.810 (0.034)	2.146 (0.078)	1.665 (0.079)
Attrition status
Deceased (yes = 1, no = 0)	0.155 (0.004)	0.158 (0.004)	0.150 (0.010)	0.122 (0.011)
Loss to follow-up (yes = 1, no = 0)	0.005 (0.001)	0.006 (0.001)	0.002 (0.001)	0.004 (0.001)

Notes. HRS = Health and Retirement Study. Data are weighted to represent the U.S. population, using HRS wave-specific weight. Standard errors of means are presented in parentheses.