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Trial registered on ANZCTR
Registration number
ACTRN12620000277943
Ethics application status
Approved
Date submitted
17/02/2020
Date registered
3/03/2020
Date last updated
19/11/2021
Date data sharing statement initially provided
3/03/2020
Date results information initially provided
19/11/2021
Type of registration
Prospectively registered
Titles & IDs
Public title
Attention Training in Police Officers
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Scientific title
A randomised controlled trial to evaluate the effect of attention training on situational awareness and post-traumatic stress in police officers
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Secondary ID [1]
300566
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None
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Anxiety
316300
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Post-traumatic stress
316443
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Condition category
Condition code
Mental Health
314567
314567
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0
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Anxiety
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Mental Health
314568
314568
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0
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Other mental health disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Attention Control Training aims to improve people's capacity to control their attentional focus. It involves once-weekly for 4 weeks and comprises 7 minutes per session. It will be administered via computer and is self-administered in police stations. This computer session requires participants to indicate on a keyboard the location of a probe stimulus. Prior to each stimulus an angry or neutral face appeared on the computer screen, and the probe appears in the position of the angry and neutral face with equal probability. Participants are required to indicate using the keyboard the location of the probe. Adherence to the program is automatically checked by the computer program assessing accuracy of choosing the correct key on the keyboard. The duration of the study for any participant will conclude after a follow-up assessment 12 weeks after the program, resulting in participation duration of 16 weeks.
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Intervention code [1]
316870
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Behaviour
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Comparator / control treatment
The comparison condition occurs once-weekly for 4 weeks and comprises 7 minutes per session. It will be administered via computer and is self-administered in police stations. This computer session requires participants to indicate on a keyboard the location of a probe stimulus. Prior to each stimulus an angry or neutral face appeared on the computer screen, and the probe always appear in the position of the neutral face. Participants are required to indicate using the keyboard the location of the probe. Adherence to the program is automatically checked by the computer program assessing accuracy of choosing the correct key on the keyboard. The duration of the study for any participant will conclude after a follow-up assessment 12 weeks after the program, resulting in participation duration of 16 weeks.
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Control group
Active
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Outcomes
Primary outcome [1]
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Posttraumatic stress as measured by the PTSD Checklist.
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Assessment method [1]
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Timepoint [1]
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Baseline (week 1), post-program (week 4), and follow-up (week 16). The primary endpoint is the post-program assessment.
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Secondary outcome [1]
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Situation awareness as measured by a self-report scale specifically designed for this study.
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Assessment method [1]
380161
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Timepoint [1]
380161
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Baseline (week 1), post-program (week 4), and follow-up (week 16)
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Eligibility
Key inclusion criteria
Member of NSW Police Force
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
None
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
A computer program randomly allocates participants to the Attention Control Training condition or comparator condition via the software program when participants enrol. This will be done in a way in which no personnel will influence which participant is allocated to a specific condition.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Participants will be randomly allocated to conditions on a 1:1 basis via simple randomisation by a computer software program.
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
This study is powered to detect significant differences between treatment arms. Analyses of the relative efficacy of the Attention Control Training and comparator programs will be evaluated using linear mixed models analysis. The Level 1 model will represent within-participant change over time, and the Level 2 model will predict variation in within-participant change over time and encompass between-participant variables (treatment condition). Primary outcome will be the PTSD Checklist and Situational Awareness Scale.
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
30/03/2020
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Actual
30/07/2020
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Date of last participant enrolment
Anticipated
29/06/2020
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Actual
24/12/2020
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Date of last data collection
Anticipated
26/10/2020
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Actual
23/04/2021
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Sample size
Target
400
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Accrual to date
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Final
470
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Recruitment in Australia
Recruitment state(s)
NSW
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Funding & Sponsors
Funding source category [1]
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Commercial sector/Industry
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Name [1]
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TAL Insurance
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Address [1]
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GPO Box 5380, Sydney NSW 2001
Level 16, 363 George Street
Sydney NSW 2000
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Country [1]
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Australia
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Primary sponsor type
Government body
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Name
NSW Police Force
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Address
151-241 Goulburn St, Surry Hills NSW 2010
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Country
Australia
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Secondary sponsor category [1]
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University
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Name [1]
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UNSW Sydney
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Address [1]
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Sydney, NSW, 2052
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Country [1]
305345
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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UNSW Human Research Ethics Committee Panel C
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Ethics committee address [1]
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School of Psychology, UNSW Sydney, NSW 2052
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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17/02/2020
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Approval date [1]
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21/02/2020
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Ethics approval number [1]
305387
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Summary
Brief summary
This study evaluated whether Attention Control Training could improve frontline police officers’ ability to focus their attention and resilience. This project randomised 470 police officers to participate in two versions of Attention Control Training. Participants completed a 7-minute computer task in which they indicate the location of a target that is positioned in the place of an angry or neutral face. It was hypothesized that Attention Control Training would lead to greater situational awareness and less posttraumatic stress.
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Trial website
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Trial related presentations / publications
Nil
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Public notes
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Contacts
Principal investigator
Name
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Prof Richard Bryant
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Address
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School of Psychology
UNSW Sydney
NSW 2052
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Country
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Australia
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Phone
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+61293853640
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Fax
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+61 293853641
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Email
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[email protected]
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Contact person for public queries
Name
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Prof Richard Bryant
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Address
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School of Psychology
UNSW Sydney
NSW 2052
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Country
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Australia
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Phone
100207
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+61293853640
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Fax
100207
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+61 293853641
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Email
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[email protected]
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Contact person for scientific queries
Name
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Prof Richard Bryant
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Address
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School of Psychology
UNSW Sydney
NSW 2052
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Country
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Australia
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Phone
100208
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+61293853640
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Fax
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+61 293853641
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Email
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
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What data in particular will be shared?
IPD data will be shared after all data is de-identified, and all participant data will be based on data used in published results.
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When will data be available (start and end dates)?
Upon publication of the results. No end date is specified for sharing of data.
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Available to whom?
Researchers conducting meta-analyses on attention control training.
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Available for what types of analyses?
Item-level meta-analyses
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How or where can data be obtained?
Emailing Professor Richard Bryant (
[email protected]
)
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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