Table 2.
Standardized beta coefficients for Aβ42 models, including resting-state functional connectivity measures [cross-correlation (CC) and total interdependence (TI)].
| Aβ42 (pg/ml) | ||
|---|---|---|
| Model adj. R2 | 0.390 | 0.580 |
| Connectivity measures | CC | TI |
| Predictor | ||
| Age, 1 year | ||
| Sex | ||
| Education, 1 year | ||
| PCC–mPFC | ||
| PCC–lAG | ||
| PCC–rAG | ||
| PCC–lMTG | ||
| PCC–rMTG | ||
| mPFC–lAG | ||
| mPFC–rAG | 0.379a | 0.592b |
| mPFC–lMTG | ||
| mPFC–rMTG | ||
| lAG–rAG | ||
| lAG–lMTG | −1.00b | |
| lAG–rMTG | ||
| rAG–lMTG | 0.656a | |
| rAG–rMTG | ||
| lMTG–rMTG | 0.474b | 0.839c |
The predictors are significant at the following: ap < 0.05; bp < 0.01; cp < 0.0001.
Standardized coefficients estimate the number of SDs the dependent variable will change given a one-SD increase in the predictor variable. All predictors included in the initial models are listed in the tables; predictors with no beta coefficients were excluded from the final models. There were no significant associations between resting-state connectivity measures and UDS T-score or pTau181.