Table 1.
Study Sample Characteristics (n = 623*)
| Estimate | 95% CI | |
|---|---|---|
| Age (years, mean) | 72.0 | 71.4-72.6 |
| Female | 52.6% | 48.1.-57.1% |
| Education | ||
| < High School | 11.3% | 8.0-15.6% |
| High School Graduate | 25.3% | 20.6-30.5% |
| Some College | 38.9% | 34.4-43.6% |
| College Graduate | 24.5% | 19.4-30.5% |
| Race | ||
| White/Caucasian | 83.8% | 79.0-87.7% |
| Black/African American | 6.1% | 4.1-9.1% |
| Hispanic, non-Black | 6.5% | 3.9-10.7% |
| Other | 3.5% | 1.9-6.4% |
| Household assets | ||
| <$10,000 | 5.4% | 3.6-8.0% |
| $10-49,000 | 11.3% | 8.5-14.9% |
| $50-99,000 | 11.3% | 8.1-15.7% |
| $100-499,000 | 42.9% | 37.3-48.4% |
| $500,000 | 29.1% | 23.5-35.4% |
| Employment Status | ||
| Working | 26.3% | 21.9-31.2% |
| Survey-Adapted Montreal Cognitive Assessment (mean) | 14.4 | 14.0-14.9 |
| Weight Status | ||
| Underweight or Normal Weight | 25.8% | 21.3-30.9% |
| Overweight | 35.7% | 31.2-40.4% |
| Obese | 38.5% | 34.1-43.1% |
| Timed 3 meter Walk (seconds, mean) | 5.7 | 4.4-6.9 |
| Activities of Daily Living Disability | ||
| Walking One Block | 24.0% | 20.5-27.9% |
| Dressing | 11.3% | 8.8-14.5% |
| Walking Across a Room | 10.1% | 8.0-12.7% |
| Transferring In/Out of Bed | 9.2% | 6.5-12.8% |
| Toileting | 8.0% | 6.0-10.5% |
| Bathing | 5.8% | 4.1-8.1% |
| Eating | 2.2% | 1.3-3.8% |
| Difficulty with at least one ADL | 31.1% | 26.8-35.8% |
| Independent Activities of Daily Living | ||
| Driving at Night | 35.0% | 30.2-40.1% |
| Light Housework | 13.3% | 10.4-16.7% |
| Shopping | 9.9% | 7.3-13.4% |
| Meal Preparation | 8.6% | 6.1-12.0% |
| Managing Money | 6.7% | 5.0-9.0% |
| Driving During the Day | 4.8% | 3.6-6.3% |
| Taking Medications | 3.9% | 2.6-5.9% |
| Difficulty with at least one IADL | 44.8% | 38.7-51.0% |
| Self Reported Vigorous Physical Activity Level in the last 12 Months** | ||
| 5+ times/week | 25.6% | 20.3-31.8% |
| 3-4 times/week | 19.2% | 16.2-22.5% |
| 1-2 times/week | 15.2% | 11.9-19.2% |
| 1-3 times/month | 8.4% | 6.3-11.0% |
| < 1 time/month | 11.3% | 9.0-14.1% |
| Never | 20.4% | 16.2-25.3% |
| Wrist Accelerometry Measures | ||
| Routine Activity (counts/15 second epoch, mean) | 54.0 | 51.9-56.2 |
| Immobile Time (mean) | 27.1% | 26.1%-28.2% |
| Wake Time Worn (hours, mean) | 42.1 | 41.2-43.0 |
*
Participants without missing data for covariates, self-reported physical activity, and accelerometry variables
**
Sports, exercise, heavy housework, physical labor