Table 2. Effect of group (control = 0 vs. prior depression = 1), time (weeks) and group-by-time interaction on physical health functioning and chronic medical burden of community-dwelling older adults with prior depression history and comparison subjects with no history of mental illness.
| Dependent variable | Independent variable | Adjusted B* | SE of B | Z | P |
|---|---|---|---|---|---|
| Physical Component Summary | Group | -1.99 | 0.86 | -2.31 | 0.03 |
| Time | -0.01 | 0.004 | -2.04 | 0.05 | |
| Group × Time | -0.02 | 0.007 | -2.89 | 0.004 | |
| Chronic Disease Score | Group | 0.56 | 0.25 | 2.21 | 0.03 |
| Time | 0.004 | 0.001 | 4.66 | <0.001 | |
| Group × Time | 0.003 | 0.001 | 2.54 | 0.02 | |
B = regression coefficient; SE = standard error
*
Adjusted for age, gender, ethnicity, marital status, education, mental health functioning, depressive symptoms and sleep quality