Table 2

SDM effect for the entire hospital (PICS, PrepDM and collaboRATE)

OutcomePICSPDM PrepDMcollaboRATE
Data setABABAB
n (T0)361706348675374733
n (T1)440581414551445588
No of departments715715715
Mean (T0)0.160.090.120.080.120.07
SD (T0)1.021.011.011.001.001.01
Mean (T1)0.130.110.100.100.100.09
SD (T1)0.960.960.980.980.980.97
MD (T1–T0)0.290.200.220.180.220.16
P value0.000.000.000.000.000.00
Threshold T0 58.7%71.8%n.s.n.s.n.s.n.s.
Threshold T1 70.0%77.8%n.s.n.s.n.s.n.s.
Hedges‘ g0.29930.19950.22910.18360.21870.1612
  • Data set A: only departments that had at least 30 valid questionnaires at both time points T0 and T1 were included; Data set B: all departments that had at least one valid questionnaire at each time point were included.

  • MD, mean difference; n.s, not specified; PICS, Perceived Involvement in Care Scale; PrepDM, preparation for decision-making.