|
Marginal model and random-effects models analysing the influence of time and age |
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| Marginal model GEE |
Random model likelihood integration |
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| Estimate |
SE |
p value |
Estimate |
SE |
p value |
|
|
|
|
|||||
| Intercept |
-1.83 |
0.12 |
< 0.0001 |
-3.61 |
0.25 |
< 0.0001 |
| Time (years) |
0.12 |
0.03 |
< 0.0001 |
0.17 |
0.06 |
0.002 |
| Age at baseline* |
0.09 |
0.02 |
< 0.0001 |
0.16 |
0.03 |
< 0.0001 |
| Age* × time |
0.01 |
0.004 |
0.003 |
0.04 |
0.009 |
< 0.0001 |
| Baseline disability |
1.54 |
0.10 |
< 0.0001 |
3.18 |
0.22 |
< 0.0001 |
| Death during the study |
0.68 |
0.12 |
< 0.0001 |
1.36 |
0.26 |
< 0.0001 |
| Random intercept variance |
- |
- |
- |
7.25 |
0.68 |
< 0.0001 |
| Random slope variance |
- |
- |
- |
0.18 |
0.04 |
< 0.0001 |
Carrière and Bouyer BMC Medical Research Methodology 2002 2:15 doi:10.1186/1471-2288-2-15 |
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