Table 2.
Multivariable Analysis to Examine Potential Risk Factors of Higher Perceived Physical Fatigability Using the Pittsburgh Fatigability Scale: The Long Life Family Study
| β coefficienta | p-value | |
|---|---|---|
| Demographic | ||
| Age, years | 0.04 | .005 |
| Sex, women | 0.27 | .0004 |
| Lifestyle and anthropometric | ||
| Total MET hours per day | –0.07 | <.0001 |
| Body mass index, kg/m2 | 0.11 | <.0001 |
| Physical function | ||
| ADL difficulty | 0.84 | <.0001 |
| SPPB score, 0–12 | –0.14 | .03 |
| Usual gait speed, m/s | –1.06 | .02 |
| Cognitive function | ||
| Digit symbol substitution score, 0–100 | –0.02 | .04 |
| Health conditions | ||
| Depressive symptoms (CES-D) score, 0–30 | 0.13 | <.0001 |
Note: ADL = activities of daily living; CES-D = Center for Epidemiologic Studies—Depression Scale score; MET = Metabolic Equivalent of Tasks from the Framingham Physical Activity Index; SPPB = Short Physical Performance Battery score.
aModel adjusted for field center and account for family relatedness.