Representation of the SDM effect in the entire hospital via linear regression
| Instrument | PICSPDM | |||
| Data set | A | B | ||
| Model 1 coeff. (SE) | Model 1 coeff. (SE) | Model 1 coeff. (SE) | Model 1 coeff. (SE) | |
| Timepoint (T0=reference) | ||||
| T1 | 0.30 (−0.07)*** | 0.27 (−0.07)*** | 0.20 (−0.06)*** | 0.20 (−0.06)*** |
| Age (18–40 years=reference) | ||||
| 41–60 | 0.21 (−0.14) | 0.06 (−0.10) | ||
| >60 | 0.28 (−0.14)* | 0.13 (−0.09) | ||
| Gender (female=reference) | ||||
| Male | 0.00 (−0.07) | 0.03 (−0.06) | ||
| Highest school-leaving qualification (elementary school leaving certificate or lower=reference) | ||||
| Secondary school leaving certificate | 0.13 (−0.09) | 0.12 (−0.07) | ||
| Vocational baccalaureate/A-levels | 0.04 (-0.09) | 0.13 (-0.07) | ||
| Constant | 0.16 (−0.05)** | 0.03 (−0.15) | 0.09 (−0.04)* | 0.10 (−0.10) |
| R2 | 0.022 | 0.031 | 0.010 | 0.018 |
| Adjusted R2 | 0.021 | 0.023 | 0.009 | 0.013 |
| n T0 | 361 | 329 | 706 | 646 |
| n T1 | 440 | 400 | 581 | 527 |
| n overall | 801 | 729 | 1.287 | 1.173 |
*p<0.05, **p<0.01, ***p<0.001.
PICSPDM, Patient Decision Making subscale of the Perceived Involvement of Care Scale; SDM, shared decision-making.