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ISRCTN
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ISRCTN33771631
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ClinicalTrials.gov identifier
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Public title
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What is the effect of framing of outcomes of medicinal treatment for hypertension on decisions about whether to take medication?
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Scientific title
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Acronym
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HIPPO (Health Information Project, Presentation Online)
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Serial number at source
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N/A
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Study hypothesis
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Our 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.
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Lay summary
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Ethics approval
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The University at Buffalo (New York, USA), Health Sciences Institutional Review Board, approved on 15 May 2002.
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Study design
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Randomized controlled trial
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Countries of recruitment
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Norway
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Disease/condition/study domain
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Hypertension (hypothetical scenario)
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Participants - inclusion criteria
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At least 18 years of age and fluent in Norwegian.
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Participants - exclusion criteria
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Previous participation in this trial.
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Anticipated start date
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01/11/2004
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Anticipated end date
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31/05/2005
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Status of trial
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Completed |
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Patient information material
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Target number of participants
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2400
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Interventions
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Presentation of three statements about the effects of antihypertensives in preventing coronary vascular disease over ten years that are framed differently.
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Primary outcome measure(s)
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Hypothetical treatment decision: to take or not to take antihypertensives.
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Secondary outcome measure(s)
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No secondary outcome measures
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Sources of funding
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Norwegian research council (Norway)
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Trial website
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Publications
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2010 results in http://www.ncbi.nlm.nih.gov/pubmed/20209127
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Contact name
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Ms
Cheryl
Carling
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Address
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PO box 7004
St Olavs Plass
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City/town
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Oslo
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Zip/Postcode
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N-0130
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Country
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Norway
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Tel
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+47 98627327
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Email
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cheryl.carling@kunnskapssenteret.no
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Sponsor
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Norwegian Knowledge Centre for the Health Services (Norway)
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Address
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PO box 7004
St Olavs Plass
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City/town
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Oslo
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Zip/Postcode
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N-0130
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Country
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Norway
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Tel
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+47 23 25 50 00
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Fax
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+47 23 25 50 10
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Email
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post@kunnskapssenteret.no
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Sponsor website:
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http://www.kunnskapssenteret.no/
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Date applied
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09/03/2007
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Last edited
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09/03/2010
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Date ISRCTN assigned
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04/05/2007
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