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From Gelb 2007 (used with permission of the Sentencing Advisory Council, Melbourne, Victoria, Australia)
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Figure 1

From Gelb 2007 (used with permission of the Sentencing Advisory Council, Melbourne, Victoria, Australia)

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies
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Figure 2

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies

Comparison 1 Behavioural: imaginal desensitisation versus covert sensitisation, Outcome 1 Anomalous desire (target behaviour) assessed by interview.
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Analysis 1.1

Comparison 1 Behavioural: imaginal desensitisation versus covert sensitisation, Outcome 1 Anomalous desire (target behaviour) assessed by interview.

Comparison 1 Behavioural: imaginal desensitisation versus covert sensitisation, Outcome 2 Lost to follow‐up.
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Analysis 1.2

Comparison 1 Behavioural: imaginal desensitisation versus covert sensitisation, Outcome 2 Lost to follow‐up.

Comparison 2 Behavioural: medication plus imaginal desensitisation vs medication alone, Outcome 1 Anomalous desire (target behaviour) assessed by interview.
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Analysis 2.1

Comparison 2 Behavioural: medication plus imaginal desensitisation vs medication alone, Outcome 1 Anomalous desire (target behaviour) assessed by interview.

Comparison 2 Behavioural: medication plus imaginal desensitisation vs medication alone, Outcome 2 Adverse events.
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Analysis 2.2

Comparison 2 Behavioural: medication plus imaginal desensitisation vs medication alone, Outcome 2 Adverse events.

Comparison 3 CBT group therapy versus no treatment, Outcome 1 Recidivism at 1 year + at risk.
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Analysis 3.1

Comparison 3 CBT group therapy versus no treatment, Outcome 1 Recidivism at 1 year + at risk.

Comparison 3 CBT group therapy versus no treatment, Outcome 2 Cognitive distortions: 1. Average endpoint score at 2 months (ABCS, high = good).
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Analysis 3.2

Comparison 3 CBT group therapy versus no treatment, Outcome 2 Cognitive distortions: 1. Average endpoint score at 2 months (ABCS, high = good).

Study

Intervention

Mean

SD

N

Notes

Anderson‐Varney 1991

Cognitive, social educational programme

12.73

10.25

30

[F (1,58)=0.637]

Anderson‐Varney 1991

Standard care

13.53

10.82

30

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Analysis 3.3

Comparison 3 CBT group therapy versus no treatment, Outcome 3 Cognitive distortions: 2. Average endpoint score at 2 months (MSI, high = good, data skewed).

Comparison 3 CBT group therapy versus no treatment, Outcome 4 Sexual obsessions.
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Analysis 3.4

Comparison 3 CBT group therapy versus no treatment, Outcome 4 Sexual obsessions.

Comparison 3 CBT group therapy versus no treatment, Outcome 5 Anxiety (generic social avoidance or distress).
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Analysis 3.5

Comparison 3 CBT group therapy versus no treatment, Outcome 5 Anxiety (generic social avoidance or distress).

Study

Outcome

Treatment (SOTEP)

(n = 259)

Control (no treatment)

(n = 225)

Marques 1994

Dropped out before starting treatment

55/259

0/225

Marques 1994

Left treatment early (voluntarily)

27/259

0/225

Marques 1994

Left treatment early (compulsory return to prison due to management problems)

10/259

0/255

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Analysis 3.6

Comparison 3 CBT group therapy versus no treatment, Outcome 6 Leaving treatment early.

Comparison 4 CBT group therapy versus transtheoretical counselling (cluster), Outcome 1 Cognitive distortions/immaturity ‐ at 24 weeks.
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Analysis 4.1

Comparison 4 CBT group therapy versus transtheoretical counselling (cluster), Outcome 1 Cognitive distortions/immaturity ‐ at 24 weeks.

Comparison 4 CBT group therapy versus transtheoretical counselling (cluster), Outcome 2 Sexual obsessions: high levels of obsession ‐ at 24 weeks.
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Analysis 4.2

Comparison 4 CBT group therapy versus transtheoretical counselling (cluster), Outcome 2 Sexual obsessions: high levels of obsession ‐ at 24 weeks.

Comparison 4 CBT group therapy versus transtheoretical counselling (cluster), Outcome 3 Leaving treatment early.
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Analysis 4.3

Comparison 4 CBT group therapy versus transtheoretical counselling (cluster), Outcome 3 Leaving treatment early.

Comparison 5 Group psychotherapy versus probation, Outcome 1 Rearrest within 10 years.
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Analysis 5.1

Comparison 5 Group psychotherapy versus probation, Outcome 1 Rearrest within 10 years.

Comparison 1. Behavioural: imaginal desensitisation versus covert sensitisation

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Anomalous desire (target behaviour) assessed by interview Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Reduced at one month

1

20

Risk Ratio (M‐H, Fixed, 95% CI)

0.57 [0.24, 1.35]

1.2 Reduced at one year

1

20

Risk Ratio (M‐H, Fixed, 95% CI)

0.6 [0.19, 1.86]

2 Lost to follow‐up Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

Figuras y tablas -
Comparison 1. Behavioural: imaginal desensitisation versus covert sensitisation
Comparison 2. Behavioural: medication plus imaginal desensitisation vs medication alone

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Anomalous desire (target behaviour) assessed by interview Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Reduced by 1 month

1

20

Risk Ratio (M‐H, Fixed, 95% CI)

1.67 [0.54, 5.17]

1.2 Reduced by 1 year

1

20

Risk Ratio (M‐H, Fixed, 95% CI)

0.6 [0.19, 1.86]

2 Adverse events Show forest plot

1

20

Risk Ratio (M‐H, Random, 95% CI)

0.57 [0.24, 1.35]

Figuras y tablas -
Comparison 2. Behavioural: medication plus imaginal desensitisation vs medication alone
Comparison 3. CBT group therapy versus no treatment

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Recidivism at 1 year + at risk Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Involving only sex offences

1

484

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.78, 1.56]

2 Cognitive distortions: 1. Average endpoint score at 2 months (ABCS, high = good) Show forest plot

1

60

Mean Difference (IV, Fixed, 95% CI)

13.43 [6.81, 20.05]

3 Cognitive distortions: 2. Average endpoint score at 2 months (MSI, high = good, data skewed) Show forest plot

Other data

No numeric data

4 Sexual obsessions Show forest plot

1

Mean Difference (IV, Random, 95% CI)

Subtotals only

4.1 Sexual inadequacies scale of the MSI

1

60

Mean Difference (IV, Random, 95% CI)

‐6.20 [‐13.46, 1.06]

5 Anxiety (generic social avoidance or distress) Show forest plot

3

112

Std. Mean Difference (IV, Random, 95% CI)

‐0.23 [‐0.61, 0.14]

6 Leaving treatment early Show forest plot

Other data

No numeric data

Figuras y tablas -
Comparison 3. CBT group therapy versus no treatment
Comparison 4. CBT group therapy versus transtheoretical counselling (cluster)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Cognitive distortions/immaturity ‐ at 24 weeks Show forest plot

1

38

Risk Ratio (M‐H, Random, 95% CI)

1.0 [0.76, 1.32]

2 Sexual obsessions: high levels of obsession ‐ at 24 weeks Show forest plot

1

38

Risk Ratio (M‐H, Random, 95% CI)

1.5 [0.80, 2.81]

3 Leaving treatment early Show forest plot

1

65

Risk Ratio (M‐H, Random, 95% CI)

1.68 [0.80, 3.49]

Figuras y tablas -
Comparison 4. CBT group therapy versus transtheoretical counselling (cluster)
Comparison 5. Group psychotherapy versus probation

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Rearrest within 10 years Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 For sex offence

1

231

Risk Ratio (M‐H, Fixed, 95% CI)

1.87 [0.78, 4.47]

Figuras y tablas -
Comparison 5. Group psychotherapy versus probation