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Table 2 Multilevel regression analyses for ACT and CBT on depressive symptoms (QIDS-SR) and quality of life (EUROHIS)

From: One year follow-up and mediation in cognitive behavioral therapy and acceptance and commitment therapy for adult depression

Measure

F

df

b

SE

p

QIDS-SR

 linear time

53.90

84.65

−2.02

.28

<.001

 quadratic time

68.02

144.73

1.75

.21

<.001

 cubic time

19.83

138.96

.35

.08

<.001

 waiting time

1.47

81.35

.16

.13

.23

 contrast

1.70

106.98

1.49

1.14

.20

 Linear time * Condition

.02

84.56

.08

.55

.88

 Quadratic time * Condition

.18

144.59

.18

.42

.67

 Cubic time * Condition

2.67

139.03

−.26

.16

.11

EUROHIS

 lineair time

30.35

71.10

1.40

.25

<.001

 quadratic time

29.89

118.47

−1.02

.19

<.001

 cubic time

12.97

111.40

−.25

.07

<.001

 waiting_time

2.54

80.72

−.21

.13

.11

 contrast

1.16

101.51

−1.23

1.14

.28

 Lineair time * Condition

1.83

71.04

−.67

.51

.18

 Quadratic time * Condition

.03

118.34

.07

.37

.86

 Cubic time * Condition

.24

111.45

−.07

.14

.63

  1. Note. ACT Acceptance and Commitment Therapy, CBT Cognitive Behavioral Therapy, EUROHIS European Health Interview Surveys Quality of Life Scale, QIDS-SR Quick Inventory for Depressive Symptomatology Self-Rated. Waiting time is the time between pretreatment assessment and first treatment session, in weeks. Condition refers to treatment group (CBT or ACT)