Table 1.
Parameter estimates of LMM, beta GLMM and beta GEE in the KORA data (N = 1945)
|
Parameter coefficients |
LMM |
Beta GLMM |
Beta GEE |
|||
|---|---|---|---|---|---|---|
| Estimate | p value | Estimate | p value | Estimate | p value | |
| Intercept |
0.7808 |
<0.0001 |
1.3534 |
<0.0001 |
1.2816 |
<0.0001 |
| Age at baseline (centered) |
−0.0036 |
<0.0001 |
−0.0185 |
0.0007 |
−0.0209 |
<0.0001 |
| Male sex |
0.0525 |
<0.0001 |
0.3483 |
<0.0001 |
0.3000 |
<0.0001 |
| Time |
−0.0140 |
0.0002 |
−0.0788 |
0.0004 |
−0.0815 |
0.0002 |
| Diabetes |
−0.0267 |
<0.0001 |
−0.1538 |
0.0002 |
−0.1586 |
<0.0001 |
| Diabetes*Time |
−0.0300 |
0.0544 |
−0.1837 |
0.0608 |
−0.1513 |
0.0813 |
| σ2 |
0.0091 |
|
|
|
|
|
| ϕ |
|
|
14.45 |
|
|
|
|
Variance of random effects |
Estimate |
SE |
Estimate |
SE |
Estimate |
SE |
| Variance |
0.0095 |
0.0007 |
0.3854 |
0.0309 |
|
|
|
Covariance estimates |
|
|
|
|
|
|
| Variance |
|
|
|
|
0.0536 |
0.0028 |
| Compound symmetry |
|
|
|
|
0.0564 |
0.0042 |
| Scale |
|
|
|
|
0.0240 |
|
|
Fit statistics |
|
|
|
|
|
|
| −2LogL |
−2457 |
|
−2739 |
|
- |
|
| AIC |
−2441 |
|
−2723 |
|
- |
|
| BIC |
−2401 |
|
−2682 |
|
- |
|
| Pseudo-R2† | 0.0535 | 0.1812 | - | |||
LMM Linear mixed model, GLMM Generalized linear mixed model, GEE Generalized estimating equations, SE Standard error, CS Compound Symmetry, AIC Akaike information criterion. BIC Bayesian information criterion.
†Compared to linear random-intercept model with -2LogL = −2350.