Table 1.
Descriptive Statistics (n = 651)
|
Women
Participants: N = 341 Hours: N = 10,197 |
Men
Participants: N = 310 Hours: N = 9,066 |
|||
|---|---|---|---|---|
| Estimate | 95% CI | Estimate | 95% CI | |
| Age | ||||
| Mean (years) | 71.3 | 70.5–72.1 | 72.5 | 71.6–73.3 |
| 62–70 (%) | 55.1 | 48.4–61.6 | 47.7 | 41.7–53.8 |
| 71–80 (%) | 32.2 | 26.5–38.6 | 36.2 | 30.6–42.2 |
| 81+ (%) | 12.7 | 9.3–17.0 | 16.1 | 11.6–22.1 |
| Race/Ethnicity (%) | ||||
| Black/African American | 7.4 | 4.8–11.4 | 6.0 | 3.7–9.7 |
| White/Caucasian | 84.0 | 78.5–88.3 | 83.9 | 78.8–88.0 |
| Hispanic (non-Black) | 5.1 | 3.1–8.2 | 6.3 | 3.6–11.0 |
| Other | 3.5 | 1.5–7.8 | 3.7 | 2.0–6.7 |
| Employment (%) | ||||
| Working | 23.9 | 18.5–30.2 | 28.4 | 21.9–35.9 |
| Body Mass Index | ||||
| Mean (kg/m2) | 28.9 | 28.2–29.5 | 29.1 | 28.4–29.8 |
| 18–24 (%) | 24.3 | 19.9–29.4 | 19.4 | 14.7–25.1 |
| 25–30 (%) | 42.0 | 36.2–48.0 | 45.5.0 | 39.2–51.9 |
| 31+ (%) | 33.7 | 28.7–39.1 | 35.1 | 28.8–42.0 |
| Modified Charlson Comorbidity Index * | 0.8 | 0.6–0.9 | 1.2 | 1.0–1.4 |
| Montreal Cognitive Assessment—Survey Adapted ** | 23.9 | 23.3–24.4 | 22.8 | 22.1–23.4 |
| Hourly Counts Per Minute During Wake Hours Between 7:00 am and 10:59 pm (CPM) | ||||
| Hourly CPM (mean) | 244.2 | 231.7–256.7 | 199.6 | 186.3–213.0 |
| Log-Transformed Hourly CPM (mean) | 2.3 | 2.2–2.3 | 2.2 | 2.2–2.2 |
| Frailty*** | ||||
| Nonfrail | 36.5 | 31.0–42.4 | 37.1 | 30.3–44.5 |
| Prefrail | 47.0 | 41.0–53.0 | 50.7 | 43.7–57.7 |
| Frail | 16.5 | 12.6–21.3 | 12.1 | 8.6–16.9 |
| Frailty (mean) | 1.2 | 1.1–1.4 | 1.1 | 0.9–1.3 |
Note: *Modified Charlson Comorbidity Index: Range 0–16. 1 point each: congestive heart failure, prior heart attack, prior coronary procedure, stroke, diabetes, rheumatoid arthritis, asthma/emphysema/chronic obstructive pulmonary disease/chronic bronchitis, dementia; 2 points: nonmetastatic cancer (nonskin); 6 points: metastatic cancer (nonskin). **Survey-Adapted Montreal Cognitive Assessment (MoCA-SA): An 18-item version of the original 28-item Montreal Cognitive Assessment (MoCA), adapted for use in a largescale, survey-based studies. MoCA scores are predicted from MoCA-SA scores, range 0–30. ***Adapted Phenotypic Frailty Scale: Range 0–4, point assigned for slow gait, slow chair stands, self-reported exhaustion, low self-reported physical activity.