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Trial registered on ANZCTR


Registration number
ACTRN12619000343101
Ethics application status
Approved
Date submitted
15/12/2018
Date registered
5/03/2019
Date last updated
5/03/2019
Date data sharing statement initially provided
5/03/2019
Type of registration
Prospectively registered

Titles & IDs
Public title
Patients' perception of qualitative and quantitative risk in preanaesthetic consent
Scientific title
Patients' perception of qualitative and quantitative risk in preanaesthetic consent
Secondary ID [1] 296886 0
none
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Health Literacy 310820 0
Condition category
Condition code
Anaesthesiology 309495 309495 0 0
Anaesthetics
Public Health 309586 309586 0 0
Health promotion/education

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Aim: To determine the relationship between quantitative and qualitative risk perceived by patients presenting for anaesthesia.
Participants > 18yrs will be recruited before their preanaesthetic consultation in the preadmission clinic.
Methods: All participants in this study will be asked the same questions. The order of questioning will be allocated as per the randomisation sequence.

All participants will be asked both sets of questions. Group A will be provided with a series of words describing risk such as 'rare, 'uncommon' 'common' 'frequent' and asked to choose which numerical descriptor eg 1:1000, 1:100 etc best applies to the verbal terms. Group B will be provided with the numerical descriptors of risk first and then asked the most appropriate word from a list best describing the meaning as per Group A. There will be no washout period.

The survey will take approximately 10 mins total.

All participants will be asked general demographic information and which method of describing risks they prefer (numerical or verbal) and whether they would like a discussion of risks to be included in the preanaesthetic consultation.

Expected Outcomes: to be able to correlate verbal descriptions of risk with numerical descriptions in order to develop a useful set of words that can be used to communicate risk more clearly when consenting patients for their anaesthetic.
Intervention code [1] 313848 0
Other interventions
Comparator / control treatment
Comparator number versus words
Control group
Active

Outcomes
Primary outcome [1] 308455 0
Where numbers are shown first, the primary outcome is the median/IQR/Range numerical score that are best represented by the words supplied as assessed by study-specific questionnaire
Timepoint [1] 308455 0
The time point is prior to anaesthesia consultation and informed consent for anaesthesia.
Primary outcome [2] 319333 0
Where the words are shown first, the primary outcome is the median/IQR/Range numerical score for each of the words supplied as assessed by study-specific questionnaire.
Timepoint [2] 319333 0
Prior to pre-anaesthesia patient review and informed consent
Secondary outcome [1] 365472 0
nil
Timepoint [1] 365472 0
nil

Eligibility
Key inclusion criteria
The eligibility criteria are patients over 18 years old who are presenting prior to their anaesthetic.
Minimum age
18 Years
Maximum age
No limit
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Exclusion criteria are those who are unable to consent for themselves or are under 18 years of age.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Consecutively numbered opaque sealed envelopes containing the randomisation sequence.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Computer generated
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Crossover
Other design features
Phase
Phase 4
Type of endpoint(s)
Safety/efficacy
Statistical methods / analysis
100-200 patients will be studied. All data will be treated as non parametric and analysed accordingly. Descriptive statistics will also be presented,

Recruitment
Recruitment status
Not yet recruiting
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW
Recruitment hospital [1] 13305 0
Nepean Hospital - Kingswood
Recruitment postcode(s) [1] 25879 0
2747 - Kingswood

Funding & Sponsors
Funding source category [1] 301458 0
Self funded/Unfunded
Name [1] 301458 0
Nepean Hospital
Address [1] 301458 0
Derby st, Kingswood, 2747, NSW
Country [1] 301458 0
Australia
Primary sponsor type
Hospital
Name
Department of Anaesthesia and Pain Management
Address
Department of Anaesthesia and Pain Management, Nepean Hospital, Derby st, Kingswood, 2747, NSW
Country
Australia
Secondary sponsor category [1] 301148 0
None
Name [1] 301148 0
Address [1] 301148 0
Country [1] 301148 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 302192 0
NEPEAN BLUE MOUNTAINS LOCAL HEALTH DISTRICT HUMAN RESEARCH ETHICS COMMITTEE
Ethics committee address [1] 302192 0
Nepean Blue Mountains Local Health District Research Office Level 5, South Block, Derby Street, Kingswood, NSW 2747
Ethics committee country [1] 302192 0
Australia
Date submitted for ethics approval [1] 302192 0
Approval date [1] 302192 0
12/06/2018
Ethics approval number [1] 302192 0
LNR/18/Nepean/53

Summary
Brief summary
Aim: To determine the relationship between quantitative and qualitative risk perceived by patients presenting for anaesthesia.
Participants will be recruited before their preanaesthetic consultation in the preadmission clinic and will be above 18yrs old.
Methods: Participants randomised as to the order in how anaesthesia risk is presented. Group A will be asked to correlate verbal descriptions of risk with numerical descriptions and then be asked to correlate numerical descriptions with verbal ones and Group B will do it the other way round.
All participants will be asked general demographic information and which method of describing risks they prefer and whether they would like a discussion of risks to be included in the preanaesthetic consultation.
Expected Outcomes: to be able to correlate verbal descriptions of risk with numerical descriptions in order to develop a useful set of words that can be used to communicate risk more clearly.
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 89426 0
Dr Rachel Smith
Address 89426 0
Department of Anaesthesia and Pain Management, Nepean Hospital, Derby st, Kingswood, 2747, NSW
Country 89426 0
Australia
Phone 89426 0
+61 423839001
Fax 89426 0
Email 89426 0
rachel.harrison11@hotmail.com
Contact person for public queries
Name 89427 0
Dr Rachel Smith
Address 89427 0
Department of Anaesthesia and Pain Management, Nepean Hospital, Derby st, Kingswood, 2747, NSW
Country 89427 0
Australia
Phone 89427 0
+61 423839001
Fax 89427 0
Email 89427 0
rachel.harrison11@hotmail.com
Contact person for scientific queries
Name 89428 0
Dr Rachel Smith
Address 89428 0
Department of Anaesthesia and Pain Management, Nepean Hospital, Derby st, Kingswood, 2747, NSW
Country 89428 0
Australia
Phone 89428 0
+61 423839001
Fax 89428 0
Email 89428 0
rachel.harrison11@hotmail.com

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
What data in particular will be shared?
Deidentified responses to the survey
When will data be available (start and end dates)?
within 6 months of publication
Available to whom?
other researchers only
Available for what types of analyses?
deidentified analyses of all collected data
How or where can data be obtained?
by email and excel spreadsheet on request
What supporting documents are/will be available?
Study protocol
Informed consent form
Ethical approval
Other
'Other' documents specified
Surveys x2, participant information sheet,
How or where can supporting documents be obtained?
Type [1] 802 0
Ethical approval
Citation [1] 802 0
Link [1] 802 0
Email [1] 802 0
Other [1] 802 0
Type [2] 803 0
Study protocol
Citation [2] 803 0
Link [2] 803 0
Email [2] 803 0
Other [2] 803 0
Type [3] 804 0
Other
Citation [3] 804 0
Link [3] 804 0
Email [3] 804 0
Other [3] 804 0
Survey - Numerical
Type [4] 805 0
Other
Citation [4] 805 0
Link [4] 805 0
Email [4] 805 0
Other [4] 805 0
Survey - Verbal
Type [5] 806 0
Other
Citation [5] 806 0
Link [5] 806 0
Email [5] 806 0
Other [5] 806 0
Participant Information Sheet
Summary results
No Results