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Table 5 Benchmarking: Comparison of study results with findings of different efficacy studies (meta-analyses) and effectiveness studies

From: Extended treatment of multimodal cognitive behavioral therapy in children and adolescents with obsessive–compulsive disorder improves symptom reduction: a within-subject design

 

Efficacy studies (Meta-analyses)

Effectiveness studies

Study

Sánchez-Meca et al. [2]

McGuire et al. [3]

Valderhaug et al. [25]

Nakatani et al. [26]

Farrell et al. [27]

Torp et al. [28]

Current study

Completers %

M = 91.4 (treatment group)

Range of means: 73 – 100 (treatment group)

86.0

Not available

94.3

89.6

86.8

Mean reduction in CY-BOCS total score %

Not investigated

Not investigated

After 12 sessions: 60.6

After 5–28 sessions: 51.8

After 8–14 sessions: 61

After 14 sessions: 52.9 (SD = 30.9)

After 12 sessions: 34.0 after 18–54 sessions: 68.8

Effect size on total OCD symptoms

Global: after M = 11.8 weeks: 1.71

Clinician-rated: after 9–14 sessions: 1.21

Clinician-rated: after 12 sessions: 3.52

Clinician-rated: after 5–28 sessions: 2.32

Clinician-rated: after 8–14 sessions: 2.12

Clinician-rated: after 14 sessions: 1.62

Clinician-rated: after 12 sessions: 1.52 after further 42 sessions: 1.72 child-rated: after 12 sessions: 0.42 after further 42 sessions: 0.52 parent-rated: after 12 sessions: 0.42 after further 42 sessions: 0.52

Remission criteria & rate %

Not investigated

Criteria: no consistent remission criteria among RCTs (e.g. CY-BOCS ≤ 10 or CY-BOCS ≤ 14)

Criteria: CY-BOCS ≤ 9

Criteria: CY-BOCS ≤ 11

Criteria: CY-BOCS ≤ 10

Criteria: CY-BOCS ≤ 10

Criteria: CY-BOCS ≤ 7 (CY-BOCS ≤ 10)

 

Remission rate: after 9–14 sessions: 57

Remission rate: after 12 sessions: 50

Remission rate: after 5–28 sessions: 60

Remission rate: after 8–14 sessions: 63

Remission rate: after 14 sessions: 49.4

Remission rate: after 12 sessions: 8.6 (16.7) after 18–54 sessions: 57.6 (57.6)

Reliable change % based on CY-BOCS

Not investigated

Not investigated

Not investigated

Not investigated

After 8–14 sessions: 86

After 14 sessions: 70.1

After 12 sessions: 57.1 after 18–54 sessions: 87.9

Effects on comorbid symptoms

After M = 11.8 weeks: Anxiety: Global: ES = 0.61 (n = 6 studies) Depression: Global: ES = 0.41 (n = 6 studies)

Not investigated

Not investigated

Not investigated

After 8–14 sessions: Overall comorbid symptoms: Clinician-rated: 45% reduction in secondary diagnoses Anxiety: Child-rated: ES = 0.22, 0.42 Depression: Child-rated: ES = 0.32

Not investigated

After 18–54 sessions: Overall comorbid symptoms: child-rated: ES = 0.42 parent-rated: ES = 0.62 Anxiety: child-rated: ES = 0.62 parent-rated: ES = 0.62 Depression: clinician-rated: ES = 0.52 child-rated: ES = 0.42 parent-rated: ES = 0.62

Effects on psychosocial impairment

Global: after M = 11.8 weeks: ES = 0.81 (n = 4 studies)

Not investigated

Child-rated: after 12 sessions: 49.6% mean reduction Parent-rated: after 12 sessions: 60.8% mean reduction

Not investigated

Child-rated: after 8–14 sessions: ES = 0.52 Parent-rated: after 8–14 sessions: ES = 0.52

Not investigated

Child-rated: after 12 sessions: ES = 0.32 after further 42 sessions: ES = 0.32 Parent-rated: after 12 sessions: ES = 0.62 after further 42 sessions: ES = 0.62

  1. 1Standardized mean difference between the change scores of the treatment and the control groups, 2Standardized mean difference pre-post-treatment