Table 2.
Predicting physical functioning trajectories from 40 to 75 years of age by cognitive performance, SES, and retirement status. Beta coefficients (and standard errors) of nested multilevel models (n=7692).
| Model 1 | Model 2 | Model 3 | |
|---|---|---|---|
| Intercept | 55.35* (0.36) | 52.67* (0.46) | 52.58* (0.46) |
| Ageb | −0.28* (0.02) | −0.37* (0.03) | −0.38* (0.03) |
| Agea | −0.17* (0.04) | −0.18* (0.04) | −0.20* (0.04) |
| Agea2 | −0.02* (0.00) | −0.02* (0.00) | −0.02* (0.00) |
| Period | |||
| Phase 3 | (reference) | (reference) | (reference) |
| Phase 4 | −0.56* (0.16) | −0.56* (0.16) | −0.55* (0.16) |
| Phase 5 | 0.00 (0.17) | 0.04 (0.17) | 0.06 (0.17) |
| Phase 6 | −0.62* (0.20) | −0.58* (0.20) | −0.57* (0.20) |
| Phase 7 | −0.09 (0.23) | −0.17 (0.23) | −0.14 (0.23) |
| Phase 8 | 0.29 (0.26) | 0.22 (0.26) | 0.24 (0.26) |
| Sex | −4.55* (0.21) | −3.88* (0.22) | −3.89* (0.22) |
| Cognitive performance | 1.63* (0.10) | 1.14* (0.11) | 1.15* (0.11) |
| Cognitive performance × Ageb | 0.06* (0.01) | 0.03* (0.01) | 0.03* (0.01) |
| SES | 0.64* (0.07) | 0.64* (0.07) | |
| SES × Ageb | 0.03* (0.01) | 0.03* (0.01) | |
| Retirement | 0.24* (0.12) | ||
Note:
*
p<0.05 level (minimum). Ageb=Age before 60y; Agea=Age after 60y; Sex: 0=men, 1=women; Retirement: 0=not retired, 1=retired. The main effect of cognitive performance refers to 60-year-olds (model 1), low-SES (model 2), and non-retired (model 3) participants. Physical functioning is scored as a T-score (M=50, SD=10).