220 Chapter 7 Table 5. Linear regression showing the effect of all outcome measures at the supervisor level before (TO), directly after (T1) and 3 (T2) and 6 months (T3) after the end of the training Outcome Model 1: Unadjusted Model 2: Adjusted model N Mean (SD) β 95%-CI P-value β 95%-CI P-value Apply behaviors Attitude T0 (reference category) T1 T2 T3 Skills T0 (reference category) T1 T2 T3 121 93 86 83 117 91 86 83 3.64 (0.71) 3.77 (0.75) 3.75 (0.84) 3.88 (0.82) 4.44 (0.58) 4.30 (0.72) 4.36 (0.72) 0.08 0.09 0.24 0.08 -0.05 0.017 -0.07 to 0.24 -0.07 to 0.25 0.08 to 0.40 -0.06 to 0.22 -0.19 to 0.10 -0.13 to 0.16 0.277 0.253 0.004 0.264 0.507 0.817 0.04**** -0.04**** 0.17**** 0.03**** -0.09**** -0.01**** -0.14 to 0.22**** -0.23 to 0.14**** -0.01 to 0.35**** -0.15 to 0.20**** -0.27 to 0.08**** -0.19 to 0.16**** 0.638**** 0.645**** 0.067**** 0.769**** 0.293**** 0.890**** *no confounders changed the beta of the independent variable with more than 10%; **adjusted for number of years of experience; ***adjusted for number of years of experience, number of years employed at current employer, educational level, number of employees guiding at the workplace, number of employees with a work disability guiding at the workplace; **** adjusted for number of years of experience, number of years employed at current employer, educational level, number of employees they guide at the workplace, number of employees with a work disability they guide at the workplace, company size
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