| Covariance Parameter | Subject | Estimate | S.E. (Kenward-Roger) | Z Value | Pr > Z | Alpha | Conf. limit | |
| Lower | Upper | |||||||
| Intercept | ID | 0.6891 | 0.0752 | 9.17 | <0.0001 | 0.05 | 0.5627 | 0.8638 |
| Residual |
| 4.7125 | 0.0804 | 58.58 | <0.0001 | 0.05 | 4.5587 | 4.8742 |