TABLE 25Categorical intervention characteristic variables in RCTs and non-RCTs

Categorical variableGroupRCTNon-RCTp-value
n%n%
Type of comparisonaHead to head1836.01812.8NA
Placebo1734.010.7
TAU1326.01711.5
No treatment12.0106.8
WL12.032.7
No comparator12.07349.3
Historical controlNANA42.7
Self as controlNANA42.7
SubgroupNANA1610.8
Broad category of primary interventionPsychological1121.68960.5< 0.0001
Pharmacological2956.91812.2
Other1121.64027.2
Specific category of primary intervention where broad category is psychologicalBehavioural/cognitive872.75966.3NA
Therapeutic communities0011.1
DV/batterer programmes218.21618.0
Other psychological therapy19.177.9
Substance abuse therapy0011.1
Multimodal programme0055.6
Specific category of primary intervention where broad category is pharmacologicalClozapine13.4211.1NA
Divalproex26.9211.1
Fluoxetine26.900
Fluvoxamine13.415.6
Haloperidol26.900
Lamotrigine13.415.6
Lorazepam13.415.6
Midazolam13.400
Nefalzone0015.6
Olanzapine413.815.6
Quetiapine00211.1
Risperidone413.800
Topiramate413.800
Ziprasidone00211.1
Zuclopenthixol13.400
Other pharmacological517.2527.8
Specific category of primary intervention where broad category is other somaticOther form of intervention001100.0NA
Specific category of primary intervention where broad category is other form of interventionSubstance abuse therapy0012.6NA
Case management model218.212.6
Legal intervention19.1820.5
Multimodal programme654.5923.1
Other form of intervention218.22051.3
Setting study started inForensic mental health12.0117.5NA
Penal institution, e.g. prison35.92919.7
Open inpatient hospital ward35.9138.8
Secure non-forensic inpatient ward0032.0
Nursing home23.910.7
Community1019.61912.9
Community: probation47.83322.4
Community mental health1019.6149.5
A&E or psychiatric emergency service59.821.4
Mixed settings35.9128.2
Other47.864.1
Not stated or unclear611.842.7
Level of interventionIndividual34674430NA
Small group11226746
Ward or team0064
Hospital or institution24107.
Population0011.
Other0011.
Mixed12139.
Not stated/unclear3653

NA, not applicable; WL, waiting list control.

a

One RCT was a randomised crossover trial so no control group and one non-RCT reported on a head-to-head and WL.

From: 3, Overview of the literature

Cover of A Systematic Review of Prevention and Intervention Strategies for Populations at High Risk of Engaging in Violent Behaviour: Update 2002–8
A Systematic Review of Prevention and Intervention Strategies for Populations at High Risk of Engaging in Violent Behaviour: Update 2002–8.
Health Technology Assessment, No. 16.3.
Hockenhull JC, Whittington R, Leitner M, et al.
Southampton (UK): NIHR Journals Library; 2012 Feb.
© 2012, Crown Copyright.

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