Table 4 Al combination of multiple regression models with 2, 3 or 4 independent variables and their R2 with and without interaction included
From: Polypharmacy in a hospitalized psychiatric population: risk estimation and damage quantification
Independent variables | R2 | |||||
|---|---|---|---|---|---|---|
Models | β1 | β2 | β3 | β4 | No interaction | Interaction |
1 | Equivalence to Risperidone | Number of psychodrugs | NA | NA | 0.277 | 0.283 |
2 | Equivalence to Risperidone | NA | Illicit drugs | NA | 0.003 | 0.004 |
3 | Equivalence to Risperidone | NA | NA | Amount of diagnostics | 0.001 | 0.009 |
4 | NA | Number of psychodrugs | Illicit drugs | NA | 0.281 | 0.294 |
5 | NA | Number of psychodrugs | NA | Amount of diagnostics | 0.279 | 0.297 |
6 | NA | NA | Illicit drugs | Amount of diagnostics | 0.003 | 0.073 |
7 | Equivalence to Risperidone | Number of psychodrugs | Illicit drugs | NA | 0.282 | 0.370 |
8 | Equivalence to Risperidone | Number of psychodrugs | NA | Amount of diagnostics | 0.280 | 0.317 |
9 | Equivalence to Risperidone | NA | Illicit drugs | Amount of diagnostics | 0.003 | 0.081 |
10 | NA | Number of psychodrugs | Illicit drugs | Amount of diagnostics | 0.284 | 0.333 |
11 | Equivalence to Risperidone | Number of psychodrugs | Illicit drugs | Amount of diagnostics | 0.285 | 0.424 |