Table 4.
Association between network size at baseline and cognitive change over five years using hierarchical multiple regression with cognitive performance at time 2 as dependent variable
| Predictor | Five-year follow-up | |||||
|---|---|---|---|---|---|---|
| Episodic memory | Semantic memory | Visuospatial ability | ||||
| ΔR 2 | β | ΔR 2 | β | ΔR 2 | β | |
| Step 1 | .566*** | .616*** | .613*** | |||
| Cognitive performance T1 | .752*** | .785*** | .783*** | |||
| Step 2 | .033*** | .012*** | .024*** | |||
| Age | −.126*** | .002 | −.131*** | |||
| Gender | .065* | .046 | .018 | |||
| Education | .122*** | .118*** | .063* | |||
| Step 3 | .002 | .004 | .005 | |||
| Subjective health | .006 | .000 | −.002 | |||
| Depressive symptoms | .004 | .021 | .048 | |||
| Physical exercise | .005 | .052* | −.045 | |||
| Alcohol use | .044 | .041 | −.030 | |||
| Step 4 | .002b | .003* | .002 | |||
| Network size | .046b | .058* | .047 | |||
| Total R 2 | .603*** | .635*** | .645*** | |||
| n | 604 | 604 | 604 | |||
ΔR 2 R square change, β standardized beta
* p < .05; *** p < .001; b p = .088