Table 5.
Hierarchical multiple linear regression analysis with the predicted variable as cognitive impairment as measured by FACT-Cog total score.
| Variable | Block 1 | Block 2 | Block 3 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| B | SE B | β | B | SE B | β | B | SE B | β | |
| Group | 25.9 | 6.9 | 0.6*** | 20.3 | 7.7 | 0.5* | 19.4 | 9.0 | 0.4* |
| Age | − 0.2 | 0.2 | − 0.1 | − 0.2 | 0.2 | − 0.2 | − 0.3 | 0.3 | − 0.2 |
| CES-D | − 0.7 | 0.4 | − 0.2 | − 0.7 | 0.5 | − 0.2 | |||
| Verrucomicrobia | 0.2 | 0.8 | 0.03 | ||||||
| R2 | 0.4 | 0.5 | 0.5 | ||||||
| F for changes in R2 | 10.1*** | 7.8*** | 5.7** | ||||||
Verrucomicrobia relative abundance was analyzed utilizing a center log-ratio transformation. F for changes in R2 F test for R-squared changes in model, *p < 0.05, **p < 0.01, ***p < 0.001.
β, beta power; B, unstandardized beta coefficient; CES-D Center for Epidemiologic Studies Depression Scale; R2, R-squared; SE B, standardized beta coefficient.