Characteristics of participants by frailty level
| Characteristic | FI score; % of participants* | |||
|---|---|---|---|---|
| ≤ 0.1 n = 766 | 0.1 < FI ≤ 0.2 n = 1121 | 0.2 < FI ≤ 0.3 n = 681 | > 0.3 n = 573 | |
| Age, yr, mean ± SD | 57.9 ± 7.2 | 63.1 ± 9.5 | 67.7 ± 9.9 | 70.0 ± 10.8 |
| Sex, female | 45.7 | 56.7 | 53.9 | 63.4 |
| Race/ethnicity | ||||
| Non-Hispanic white | 81.6 | 81.5 | 81.9 | 79.6 |
| Non-Hispanic black | 6.9 | 7.9 | 7.8 | 12.6 |
| Hispanic | 7.3 | 7.0 | 4.8 | 4.2 |
| Other | 4.2 | 3.6 | 5.5 | 3.7 |
| Education | ||||
| Less than high school | 11.2 | 17.8 | 23.6 | 32.8 |
| High school | 23.2 | 26.8 | 30.3 | 30.7 |
| Some college/associate education | 32.6 | 29.1 | 27.1 | 27.0 |
| College graduate or more | 32.9 | 26.3 | 19.0 | 9.5 |
| Marital status | ||||
| Married | 76.5 | 70.1 | 66.1 | 50.3 |
| Widowed | 5.8 | 12.3 | 16.8 | 30.4 |
| Divorced or separated | 14.2 | 13.4 | 13.5 | 15.2 |
| Never married | 3.4 | 4.2 | 3.7 | 4.1 |
| Full-time working | 57.8 | 37.3 | 18.7 | 4.8 |
| Smoking status | ||||
| Never | 49.4 | 47.9 | 42.6 | 45.0 |
| Past | 33.8 | 37.2 | 40.9 | 38.1 |
| Current | 16.8 | 14.9 | 16.5 | 16.8 |
| Body mass index | ||||
| Underweight | 1.2 | 0.9 | 1.4 | 1.4 |
| Normal | 33.1 | 27.2 | 21.1 | 25.5 |
| Overweight | 39.9 | 40.4 | 36.4 | 31.0 |
| Obese | 25.8 | 31.4 | 41.1 | 42.1 |
| Accelerometer time, h, mean ± SD | 14.6 ± 1.5 | 14.3 ± 1.7 | 14 ± 1.6 | 13.7 ± 1.9 |
Note: FI = frailty index, SD = standard deviation.
↵* Except where indicated otherwise. The percentages and mean values are weighted.