Blar i Artikler fra Kunnskapssenteret på forfatter "Kristoffersen, Doris Tove"
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The effect of alternative graphical displays used to present the benefits of antibiotics for sore throat on decisions about whether to seek treatment: a randomized trial.
Carling, Cheryl L L; Kristoffersen, Doris Tove; Flottorp, Signe; Fretheim, Atle; Oxman, Andrew David; Schünemann, Holger J; Akl, Elie A; Herrin, Jeph; MacKenzie, Thomas D; Montori, Victor M (Journal article; Peer reviewed, 2009-08-25)BACKGROUND: We conducted an Internet-based randomized trial comparing four graphical displays of the benefits of antibiotics for people with sore throat who must decide whether to go to the doctor to seek treatment. Our ... -
The effect of alternative summary statistics for communicating risk reduction on decisions about taking statins: a randomized trial.
Carling, Cheryl L L; Kristoffersen, Doris Tove; Montori, Victor M; Herrin, Jeph; Schünemann, Holger J; Treweek, Shaun; Akl, Elie A; Oxman, Andrew David (Journal article; Peer reviewed, 2009-08-25)BACKGROUND: While different ways of presenting treatment effects can affect health care decisions, little is known about which presentations best help people make decisions consistent with their own values. We compared six ... -
The effect of how outcomes are framed on decisions about whether to take antihypertensive medication: a randomized trial.
Carling, Cheryl L L; Kristoffersen, Doris Tove; Oxman, Andrew David; Flottorp, Signe Agnes; Fretheim, Atle; Schünemann, Holger J; Akl, Elie A; Herrin, Jeph; MacKenzie, Thomas D; Montori, Victor M (Journal article; Peer reviewed, 2010-03-01)BACKGROUND: We conducted an Internet-based randomized trial comparing three valence framing presentations of the benefits of antihypertensive medication in preventing cardiovascular disease (CVD) for people with newly ... -
The effects of mandatory prescribing of thiazides for newly treated, uncomplicated hypertension: interrupted time-series analysis.
Fretheim, Atle; Håvelsrud, Kari; MacLennan, Graeme; Kristoffersen, Doris Tove; Oxman, Andrew David (Journal article; Peer reviewed, 2007-07)BACKGROUND: The purpose of our study was to evaluate the effects of a new reimbursement rule for antihypertensive medication that made thiazides mandatory first-line drugs for newly treated, uncomplicated hypertension. The ... -
How should the impact of different presentations of treatment effects on patient choice be evaluated? A pilot randomized trial.
Carling, Cheryl; Kristoffersen, Doris Tove; Herrin, Jeph; Treweek, Shaun; Oxman, Andrew David; Schünemann, Holger; Akl, Elie A; Montori, Victor (Journal article; Peer reviewed, 2008-11-24)BACKGROUND: Different presentations of treatment effects can affect decisions. However, previous studies have not evaluated which presentations best help people make decisions that are consistent with their own values. We ... -
Systematic review to determine whether participation in a trial influences outcome.
Vist, Gunn Elisabeth; Hagen, Kåre Birger; Devereaux, P J; Bryant, Dianne; Kristoffersen, Doris Tove; Oxman, Andrew David (Journal article, 2005-05-21)OBJECTIVE: To systematically compare the outcomes of participants in randomised controlled trials (RCTs) with those in comparable non-participants who received the same or similar treatment. DATA SOURCES: Bibliographic ...