Table 2.
Results of the mixed models analysis of the STAI total, State and Trait subscale scores. Regression coefficients (B), standard error (SE), Wald-statistic and 95% confidence interval (95% CI) for the interaction terms of covariate X time that have a significant contribution to the model are printed in bold font.
| STAI total score
|
STAI State score
|
STAI Trait score
|
|||||||
|---|---|---|---|---|---|---|---|---|---|
| B (SE) | Wald | 95% CI | B (SE) | Wald | 95% CI | B (SE) | Wald | 95% CI | |
| Compulsive behavior | 5.89 (2.51) | 5.49 | [0.96, 10.81] | 5.13 (1.60) | 10.28 | [2.00, 8.27] | 3.11 (1.31) | 5.69 | [0.55, 5.67] |
| Compulsive behavior X Time | −3.13 (1.47) | 4.54 | [−6.00, −0.25] | −2.10 (0.89) | 5.64 | [−3.84, −0.37] | −1.60 (0.75) | 4.62 | [−3.07, −0.14] |
| Age | −0.14(0.08) | 3.04 | [−0.29, −0.02] | – | – | – | −0.11 (0.04) | 7.33 | [−0.19, −0.03] |
| Age X time | 0.11 (0.05) | 5.31 | [0.02, 0.20] | – | – | – | 0.07 (0.02) | 7.34 | [0.02, 0.11] |
| Family history of PD | 0.31(1.82) | 0.03 | [−3.25, 3.87] | 0.58(1.15) | 0.25 | [−1.69, 2.83] | – | – | – |
| Family history of PD X Time | −2.03 (1.10) | 3.67 | [−4.10, 0.05] | −1.25 (0.64) | 3.80 | [−2.51, 0.01] | – | – | – |
| Probable RBD | 0.86 (1.87) | 0.21 | [−2.81, 4.53] | – | – | – | 0.32 (0.97) | 0.11 | [−1.58, 2.23] |
| Probable RBD X time | 2.05 (1.09) | 5.35 | [0.38, 4.64] | – | – | – | 1.19 (0.55) | 4.72 | [0.12, 2.26] |
| GDS-15 | 4.40(0.36) | 148.22 | [3.69, 5.10] | – | – | – | 2.38 (0.19) | 165.23 | [2.02, 2.74] |
| GDS-15 X time | −0.42 (0.21) | 4.06 | [−0.82, −0.01] | – | – | – | −0.21 (0.11) | 4.04 | [−0.42, −0.01] |
| MoCA | – | – | – | −0.19 (0.20) | 0.88 | [−0.58, 0.21] | – | – | – |
| MoCA X Time | – | – | – | −0.25 (0.12) | 4.65 | [−0.47, −0.02] | – | – | – |
STAI = State-Trait Anxiety Inventory; RBD = REM-sleep behavior disorder; GDS-15 = 15-item Geriatric Depression Scale; MoCA = Montreal Cognitive Assessment.