What is the effect of framing of outcomes of medicinal treatment for hypertension on decisions about whether to take medication?

ISRCTN ISRCTN33771631
DOI https://doi.org/10.1186/ISRCTN33771631
Secondary identifying numbers N/A
Submission date
09/03/2007
Registration date
04/05/2007
Last edited
09/03/2010
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Ms Cheryl Carling
Scientific

PO box 7004
St Olavs Plass
Oslo
N-0130
Norway

Phone +47 98627327
Email cheryl.carling@kunnskapssenteret.no

Study information

Study designRandomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeNot Specified
Scientific title
Study acronymHIPPO (Health Information Project, Presentation Online)
Study objectivesOur two main comparisons were formulated as the following null-hypotheses:
1. The congruence between participants’ values and their treatment decision is not better for positively framed messages showing gain over 10 years than for negatively framed messages showing loss over 10 years.
2. The congruence between participants’ values and their treatment decision is not better for negatively framed messages showing loss over 10 years than for negatively framed messages showing loss per year over 10 years.
Ethics approval(s)The University at Buffalo (New York, USA), Health Sciences Institutional Review Board, approved on 15 May 2002.
Health condition(s) or problem(s) studiedHypertension (hypothetical scenario)
InterventionPresentation of three statements about the effects of antihypertensives in preventing coronary vascular disease over ten years that are framed differently.
Intervention typeOther
Primary outcome measureHypothetical treatment decision: to take or not to take antihypertensives.
Secondary outcome measuresNo secondary outcome measures
Overall study start date01/11/2004
Completion date31/05/2005

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexNot Specified
Target number of participants2400
Key inclusion criteriaAt least 18 years of age and fluent in Norwegian.
Key exclusion criteriaPrevious participation in this trial.
Date of first enrolment01/11/2004
Date of final enrolment31/05/2005

Locations

Countries of recruitment

  • Norway

Study participating centre

PO box 7004
Oslo
N-0130
Norway

Sponsor information

Norwegian Knowledge Centre for the Health Services (Norway)
Other

PO box 7004
St Olavs Plass
Oslo
N-0130
Norway

Phone +47 23 25 50 00
Email post@kunnskapssenteret.no
Website http://www.kunnskapssenteret.no/
ROR logo "ROR" https://ror.org/01thff661

Funders

Funder type

Research council

Norwegian research council (Norway)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/03/2010 Yes No