Table 3

 Comparison of psychosocial work factors and health conditions (mean differences between scores) between the pre-intervention measure (M0) and the post-intervention measure (M1) in the experimental and the control hospitals

VariablesExperimental hospital, n = 302Control hospital, n = 311
M0 Mean (SE)*M1 Mean (SE) (m.d.)Mean of differences (95% CI)M0 Mean (SE)M1 Mean (SE) (m.d.)Mean of differences (95% CI)
*ANOVA with repeated measures. A contrast was used to test for each hospital: H0, mean of differences between M1 and M0 = 0; H1, mean of differences between M1 and M0≠0.
m.d., missing data.
Psychological demands12.37 (0.14)11.80 (0.14) (1 m.d.)−0.56 (−0.94 to −0.18)13.24 (0.13)12.93 (0.14) (1 m.d.)−0.31 (−0.68 to 0.07)
Decision latitude69.67 (0.34)68.73 (0.34) (1 m.d.)−0.94 (−1.88 to −0.01)69.24 (0.33)67.96 (0.33) (1 m.d.)−1.28 (−2.20 to −0.35)
Supervisor support11.40 (0.11)10.84 (0.11) (6 m.d.)−0.57 (−0.86 to −0.27)11.31 (0.10)10.38 (0.10) (3 m.d.)−0.92 (−1.21 to −0.63)
Co-worker support12.45 (0.07)12.50 (0.07) (6 m.d.)0.04 (−0.16 to 0.25)12.35 (0.07)12.23 (0.07) (3 m.d.)−0.12 (−0.32 to 0.08)
Reward30.69 (0.15)31.11 (0.15) (1 m.d.)0.41 (−0.01 to 0.83)30.11 (0.15)29.95 (0.15) (2 m.d.)−0.16 (−0.58 to 0.25)
Effort/reward imbalance1.12 (0.01)1.08 (0.01) (2 m.d.)−0.04 (−0.07 to −0.01)1.18 (0.01)1.16 (0.01) (2 m.d.)−0.01 (−0.04 to 0.01)
Psychological distress21.81 (0.58)21.07 (0.58) (0 m.d.)−0.73 (−2.34 to 0.87)22.13 (0.57)22.52 (0.57) (3 m.d.)0.39 (−1.20 to 1.97)
Sleeping problems1.65 (0.07)1.08 (0.07) (1 m.d.)−0.57 (−0.76 to −0.39)1.57 (0.06)1.16 (0.06) (2 m.d.)−0.41 (−0.59 to −0.23)
Client related burnout36.06 (0.65)36.20 (0.65) (0 m.d.)0.15 (−1.65 to 1.94)36.61 (0.64)38.51 (0.64) (1 m.d.)1.91 (0.13 to 3.68)
Work related burnout48.11 (0.63)46.27 (0.63) (0 m.d.)−1.83 (−3.58 to −0.09)49.36 (0.62)49.42 (0.62) (1 m.d.)0.06 (−1.66 to 1.78)
Personal burnout43.62 (0.60)42.96 (0.60) (0 m.d.)−0.65 (−2.33 to 1.02)44.73 (0.60)46.14 (0.60) (2 m.d.)1.42 (−0.24 to 3.07)