Table 3.
Motor Function, Cognition, Other Covariates, and Incident Disability in Older Black Adults
| Predictors | Incident IADL Disability (n = 172, 48.5%) |
Incident ADL Disability (n = 90, 18.3%) |
Incident Mobility Disability (n = 166, 50.2%) |
|---|---|---|---|
| Global motor score | 0.56 (0.46, 0.69)*** | 0.48 (0.36, 0.64)*** | 0.59 (0.47, 0.75)*** |
| Global cognition | 0.69 (0.48, 1.01) | 0.57 (0.35, 0.94)* | 0.88 (0.61, 1.27) |
| BMI | 1.02 (0.99, 1.06) | 1.00 (0.96, 1.05) | 1.02 (0.99, 1.06) |
| BMI × BMI | 1.001 (1.000, 1.004) | 1.003 (1.000, 1.006) | 1.002 (0.999, 1.005) |
| Vascular diseases | 1.38 (0.98, 1.93) | 1.38 (0.85, 2.24) | 1.64 (1.14, 2.36)** |
| Vascular risk factors | 1.13 (0.93, 1.39) | 1.08 (0.81, 1.45) | 1.20 (0.98, 1.47) |
| Physical activity | 0.98 (0.84, 1.16) | 1.06 (0.82, 1.36) | 0.79 (0.66, 0.94)** |
Notes: ADL = activities of daily living; BMI = body mass index; IADL = instrumental activities of daily living.
Each column shows the results for a single Cox proportional hazard model for each of the disabilities which were examined. The model included terms for age, sex, and education (not shown) and terms for each of the seven predictors. Each cell shows the hazard’s ratio (95% confidence interval). Hazard’s ratio is shown for 1-SD of global motor score.
*p < .05. **p < .01. ***p < .001.