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Table 4 Changes over time from baseline to 10- month follow-up

From: Work-focused cognitive behavioral intervention for psychological complaints in patients on sick leave due to work-related stress: Results from a randomized controlled trial

Variable

Baseline

  

0–10 months changes

 

M

95%CI

M- change

95%CI

p-value

d-

95%Ci

Outcome

PSS10 (0–40)

 Intervention group

23.08

21.43 to 24.73

−8.85

−10.53 to −7.16

0.000

−1.39

−1.66 to −1.13

 Control group A

21.76

20.07 to 23.45

−7.38

−9.14 to −5.61

0.000

−1.16

−1.46 to −0.89

 Control group B

21.91

20.01 to 23.80

−5.31

−7.24 to −3.37

0.000

−0.85

−1.15 to −0.54

 Effect I vs A

  

−1.47

−3.91 to 0.97

0.238

−0.23

−0.62 to 0.15

 Effect I vs B

  

−3.54

−6.11 to −0.97

0.007

−0.56

−0.97 to −0.15

 Effect A vs B

  

−2.07

−4.69 to 0.55

0.122

−0.33

−0.75 to 0.09

GHQ30 (0–30)

 Intervention group

19.49

17.57 to 21.41

−14.03

−16.36 to −11.7

0.000

−1.88

−2.19 to −1.56

 Control group A

18.07

16.09 to 20.06

−12.59

−15.03 to −10.14

0.000

−1.69

−2.02 to −1.36

 Control group B

18.60

16.35 to 20.85

−11.62

−14.30 to −8.94

0.000

−1.56

−1.92 to −1.20

 Effect I vs A

  

−1.45

−4.83 to 1.93

0.402

−0.19

−0.65 to 0.26

 Effect I vs B

  

−2.41

−5.97 to 1.15

0.184

−0.32

−0.8 to 0.15

 Effect A vs B

  

−0.96

−4.6 to 2.66

0.603

−0.13

−0.62 to 0.36

BNSQ (5–25)

 Intervention group

17.08

16 to 18.17

−4.78

−5.96 to −3.60

0.000

−1.15

−1.44 to −0.87

 Control group A

16.87

15.8 to 17.97

−4.23

−5.45 to −3.02

0.000

−1.03

−1.32 to −0.73

 Control group B

17.20

15.96 to 18.45

−3.94

−5.28 to −2.6

0.000

−0.96

−1.28 to −0.63

 Effect I vs A

  

−0.54

−2.24 to 1.15

0.528

−0.13

−0.54 to 0.28

 Effect I vs B

  

−0.84

−2.63 to 0.94

0.355

−0.20

−0.64 to 0.23

 Effect A vs B

  

−0.30

−2.11 to 1.51

0.747

0.07

−0.51 to 0.37

CFQ-Memory (range 0–28)

 Intervention group

10.44

9.14 to 11.74

−3.64

−4.79 to −2.48

0.000

−0.73

−0.96 to −0.50

 Control group A

10.42

9.09 to 11.74

−2.44

−3.64 to −1.24

0.000

−0.49

−0.73 to - 0.25

 Control group B

10.59

9.10 to 12.08

−0.61

−1.95 to 0.72

0.369

−0.12

−0.40 to 0.15

 Effect I vs A

  

−1.20

−2.87 to 0.47

0.159

−0.24

−0.57 to 0.09

 Effect I vs B

  

−3.02

−4.79 to - 1.26

0.001

−0.61

−0.96 to −0.25

 Effect A vs B

  

−1.83

−3.62 to −0.03

0.047

−0.37

−0.73 to −0.01

CFQ- Distractions (0–36)

 Intervention group

19.68

18.11 to 21.26

−5.30

−6.75 to −3.84

0.000

−0.87

−1.11 to −0.63

 Control group A

21.22

19.62 to 22.83

−5.21

−6.72 to −3.70

0.000

−0.87

−1.12 to −0.61

 Control group B

20.26

18.45 to 22.07

−3.97

−5.64 to −2.31

0.000

−0.66

−0.94 to −0.39

 Effect I vs A

  

−0.09

−2.19 to 2.01

0.934

−0.01

−0.36 to - 0.33

 Effect I vs B

  

−1.33

−3.54 to 0.88

0.240

−0.22

−0.59 to - 0.15

 Effect A vs B

  

−1.24

−3.49 to 1.01

0.281

−0.21

−0.58 to - 0.17

  1. Effect sizes are depicted using Cohen’s d (standardized mean difference). PSS perceived stress scale, GHQ general health questionnaire, BNSQ basic Nordic sleep questionnaire, CFQ cognitive failures questionnaire, SD standard deviation, CI confidence interval, M mean