Table 7.
Multivariate linear regression analysis models of OT, OD, and OI as dependent variables and each specific sub-score of CRI as independent variables in men (n = 111).
| Unstandardized Coefficients | Standardized Coefficients | ||||
|---|---|---|---|---|---|
| B | Std Error | β | t | p | |
| Model (1) OT as a dependent variable | |||||
| CRI-Education | −0.095 | 0.028 | −0.404 | −3.399 | 0.001 |
| CRI-Working Activity | 0.018 | 0.021 | 0.119 | 0.865 | 0.389 |
| CRI-Leisure Time | −0.027 | 0.023 | −0.166 | −1.150 | 0.253 |
| Model (2) OD as a dependent variable | |||||
| CRI-Education | −0.011 | 0.023 | −0.057 | −0.488 | 0.626 |
| CRI-Working Activity | 0.026 | 0.017 | 0.206 | 1.516 | 0.132 |
| CRI-Leisure Time | 0.012 | 0.019 | 0.088 | 0.615 | 0.540 |
| Model (3) OI as a dependent variable | |||||
| CRI-Education | −0.009 | 0.023 | −0.047 | −0.398 | 0.691 |
| CRI-Working Activity | 0.014 | 0.017 | 0.107 | 0.781 | 0.437 |
| CRI-Leisure Time | 0.009 | 0.019 | 0.069 | 0.480 | 0.632 |
Legend: CRI = Cognitive Reserve Index; OT = Odor Threshold; OD = Odor Discrimination; OI = Odor Identification; Std Error = standard error. Bold indicates statistical differences of p < 0.05.