Table 3.
Association of Individual Accelerometry Measures With Estimated 10‐Year HCHD Risk Among Adults At Risk for Mobility Disability
| CVD Status | Model 1 | Model 2 | Model 3 | Model 4 |
|---|---|---|---|---|
| CVD | ||||
| Min/day <100 counts/min | 0.05 (0.03 to 0.06) | 0.05 (0.03 to 0.06) | 0.03 (0.02 to 0.05) | 0.04 (0.02 to 0.05) |
| Min/day 100 to 499 counts/min | −0.07 (−0.09 to −0.05) | −0.07 (−0.09 to −0.05) | −0.05 (−0.08 to −0.03) | −0.05 (−0.08 to −0.03) |
| Mins/day ≥500 counts/min | −0.07 (−0.10 to −0.04) | −0.07 (−0.09 to −0.05) | −0.06 (−0.09 to −0.03) | −0.06 (−0.09 to −0.03) |
| Activity counts/min* | −0.01 (−0.02 to 0.00) | −0.01 (−0.02 to 0.00) | −0.01 (−0.02 to 0.00) | −0.01 (−0.02 to 0.00) |
| No CVD | ||||
| Min/day <100 counts/min | 0.03 (0.02 to 0.04) | 0.03 (0.02 to 0.04) | 0.03 (0.02 to 0.03) | 0.03 (0.02 to 0.03) |
| Mins/day 100 to 499 counts/min | −0.06 (−0.07 to −0.04) | −0.06 (−0.07 to −0.04) | −0.05 (−0.06 to −0.03) | −0.05 (−0.06 to −0.03) |
| Mins/day ≥500 counts/min | −0.03 (−0.05 to −0.02) | −0.03 (−0.05 to −0.02) | −0.03 (−0.04 to −0.01) | −0.03 (−0.04 to −0.01) |
| Activity counts/min* | 0.00 (−0.00 to 0.00) | 0.00 (−0.00 to 0.01) | 0.00 (−0.00 to 0.01) | 0.00 (−0.00 to 0.01) |
Data reflect a cross‐sectional analysis of baseline characteristics of 1170 older adults (≥70 years) at risk for mobility disability participating in the Lifestyle Interventions and Independence for Elders (LIFE) Study. Values stratified by self‐reported CVD history and expressed as percent change in HCHD risk (95% CI) per unit change in the accelerometry measure. Model 1 is adjusted for accelerometer wear time; model 2 was adjusted for wear time and prevalent diabetes. Model 3 was adjusted for model 2, demographics not already included in the HCHD risk score, and the use of antihypertensive and lipid lowering medications. Model 4 was adjusted for model 3 and non‐CVD comorbidities (3MS, PSQI, and CES‐D). 3MS indicates Modified Mini‐Mental State Examination; CES‐D, Center for Epidemiologic Studies Depression Scale; CVD, cardiovascular disease; HCHD, hard coronary heart disease; PSQI, Pittsburgh Sleep Quality Index.
For all activity >100 accelerometry counts/min. All values rounded to 2 decimal places.