Table 1. Demographic Characteristics of Study Sample by Race and Sex: Health and Retirement Study age 65+, 2010/2012 (N=7,688).
| Variables | Whites (n=6,628) | Blacks (n=1,058) | ||
|---|---|---|---|---|
|
| ||||
| Men (n=2,799) Mean (SD) | Women (n=3,829) Mean (SD) | Men (n=383) Mean (SD) | Women (n=675) Mean (SD) | |
| Age (y) | 75.5 (6.7) | 75.4 (7.0) | 73.6 (5.8) | 73.9 (6.2) |
| Maximum grip strength (kg) | 37.8 (8.7) | 22.1 (5.7) | 37.2 (8.7) | 24.5 (5.8) |
| Gait speed (meters/second) | 0.83 (0.25) | 0.75 (0.25) | 0.67 (0.21) | 0.59 (0.21) |
| Na (%)b | N (%) | N (%) | N (%) | |
| Slow walking speed | ||||
| Slow walkers (<0.8 m/s) | 1,297 (44.0) | 2,249 (58.7) | 287 (74.9) | 582 (87.3) |
| Normal walkers (≥0.8 m/s) | 1,502 (56.0) | 1,580 (41.4) | 96 (25.1) | 93 (12.7) |
| BMI | ||||
| Underweight (<18.5) | 19 (0.7) | 89 (2.1) | 7 (1.4) | 10 (2.4) |
| Normal weight (18.5-24.9) | 688 (23.5) | 1,319 (35.7) | 100 (27) | 129 (19.8) |
| Overweight (25-29.9) | 1,253 (45.1) | 1,289 (34.3) | 151 (38.7) | 228 (33.3) |
| Obese (≥30) | 830 (30.7) | 1,067 (28.3) | 123 (32.9) | 303 (44.6) |
| Activities of daily living (ADLs) | ||||
| 0 | 2,289 (85.8) | 3,175 (81.7) | 317 (79.7) | 490 (67.2) |
| 1+ | 410 (14.2) | 654 (18.3) | 66 (20.3) | 185 (32.8) |
| Chronic conditions | ||||
| No chronic conditions | 178 (7.2) | 212 (5.7) | 21 (6.1) | 17 (2.5) |
| At least 1 chronic condition | 479 (18.0) | 678 (18.0) | 68 (18.2) | 85 (13.3) |
| 2+ more chronic conditions | 2,141 (74.7) | 2,939 (76.2) | 294 (75.7) | 573 (84.1) |
a
Number of participants, unweighted
b
Percentage, weighted