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Communicating Objective Risk for Personalized Decision Making About Mammography

20. Juli 2017 aktualisiert von: University of Pennsylvania
The purpose of this study is to test the effects of objective risk information about breast cancer and mammography outcomes using a randomized control trial. Women between the ages of 35 and 49 will receive information about their personal risk for breast cancer and be randomly assigned to receive data about a woman who should be screened, data about the potential outcomes of screening, or data about breast cancer deaths. Two presentation formats will be tested and compared.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

This study will compare alternative strategies for the presentation of individualized information about the risks and benefits of mammography screening. The purpose of this study is to understand how objective risk information influences outcomes including behavioral intentions, attitudes about mammography, and emotional responses.

After participants view objective risk information, a post-test survey will measure outcome variables including behavioral intentions, knowledge, and emotional responses.

After reading information based on their condition, study participants will be asked to complete a series of questions to measure their reactions based on their condition. Specifically, the investigators will be measuring the following dependent variables (primary outcomes): behavioral intentions to receive mammograms, attitudes about mammography, subjective norms about mammography and breast cancer screening, knowledge about mammography outcomes and screening recommendations, and emotional responses to the material including psychological reactance. These outcomes will be measured using self-reported questionnaire items.

In this project, the investigators will compare alternative communication strategies to determine which strategy or strategies result in the greatest level of understanding. The investigators also will examine if the various strategies differentially affect the primary outcomes listed above.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

1560

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

  • Vereinigte Staaten
    • Pennsylvania
      • Philadelphia, Pennsylvania, Vereinigte Staaten, 19104
        • University of Pennsylvania

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

35 Jahre bis 49 Jahre (Erwachsene)

Akzeptiert gesunde Freiwillige

Ja

Studienberechtigte Geschlechter

Weiblich

Beschreibung

Inclusion Criteria:

  • Adult women between the ages of 35 and 49 will be invited to participate in this study.

Exclusion Criteria:

  • Women who have been previously diagnosed with breast cancer or have tested positive for the breast cancer gene will not be included.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Sonstiges
  • Zuteilung: Zufällig
  • Interventionsmodell: Fakultätszuweisung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Kein Eingriff: Control group 1: pre/post-test
Group receives pre and post test questions only.
Experimental: Control group 2: tool and pre/post-test
Group receives decision tool without personalized information. (Behavioral: Decision Aid)
Verhalten: Entscheidungshilfe
Experimental: Gail score in a percentage format
Group receives Gail score in a percentage format. (Behavioral: Decision Aid)
Verhalten: Entscheidungshilfe
Experimental: Gail score in a frequency format
Group receives Gail score in a frequency format. (Behavioral: Decision Aid)
Verhalten: Entscheidungshilfe
Experimental: Frequency + Average 50 year old
Group receives Gail score in a frequency format as well as information about risk of breast cancer for the average 50 year old woman. (Behavioral: Decision Aid)
Verhalten: Entscheidungshilfe
Experimental: Frequency + Mammography Data
Group receives Gail score in a frequency format as well as information about the risks of mammography. (Behavioral: Decision Aid)
Verhalten: Entscheidungshilfe
Experimental: Frequency + Mortality Data
Group receives Gail score in a frequency format as well as information about mortality benefit of mammography. (Behavioral:Decision Aid)
Verhalten: Entscheidungshilfe
Experimental: Frequency + Avg 50 year old + Mamm Data + Mortality Data
Group receives Gail score in a frequency format as well as information about breast cancer risk for the average 50 year old woman, information about the risks of mammography, risk of breast cancer for the average 50 year old woman, and information about the mortality benefit associated with mammography. (Behavioral: Decision Aid)
Verhalten: Entscheidungshilfe

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Behavioral intentions to get a mammogram
Zeitfenster: immediately following intervention (time 0)
All participants will be asked to report their behavioral intentions to obtain mammograms in their 40s and at age 50.
immediately following intervention (time 0)

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Attitude about mammography
Zeitfenster: immediately following intervention (time 0)
Participants will be asked to report their attitudes about mammography (i.e., is a mammogram useful, harmful, etc.)
immediately following intervention (time 0)

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Injunctive and descriptive norms about mammography
Zeitfenster: immediately following intervention (time 0)
Participants will be asked to report their perceived norms about mammography, what they think important others would expect them to do and what they think other women their age or older are doing.
immediately following intervention (time 0)
Decisional satisfaction
Zeitfenster: immediately following intervention (time 0)
This variable assesses how satisfied participants feel about making a decision about mammography given the information they have been provided. Items include, "The information in the decision aid made me feel the choice to get a mammogram is being taken away from me by the groups that make screening recommendations."
immediately following intervention (time 0)
Risk perception
Zeitfenster: immediately before and after intervention (time 0)
This variable includes perceived severity and perceived susceptibility of breast cancer. Items include, "What is the chance that an average 40-49 year old woman will develop breast cancer in the next 10 years? Please choose a number between 0 (no chance of breast cancer) and 100 (definitely will get breast cancer)."
immediately before and after intervention (time 0)
Clarity of the information being presented
Zeitfenster: immediately following intervention (time 0)
These items assess how easy it is for participants to understand the numerical information that is provided in the decision aid.
immediately following intervention (time 0)
Credibility of the information
Zeitfenster: immediately following intervention (time 0)
These items measure the perceived trustworthiness, credibility, and accuracy of the information provided in the decision aid. Items include, "How credible did you find the information presented in the decision aid?"
immediately following intervention (time 0)
Emotional reactions
Zeitfenster: immediately following intervention (time 0)
The outcome includes measures of psychological reactance, anger, and fear that may be possible reactions to the decision aid. Items include, "How much do each of the following words (i.e., angry, worried) describe how you felt while reading the decision aid?"
immediately following intervention (time 0)

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University of Pennsylvania

Ermittler

  • Hauptermittler: Joseph N Cappella, PhD, University of Pennsylvania

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. September 2012

Primärer Abschluss (Tatsächlich)

18. Dezember 2012

Studienabschluss (Tatsächlich)

18. Dezember 2012

Studienanmeldedaten

Zuerst eingereicht

28. August 2012

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

17. September 2012

Zuerst gepostet (Schätzen)

18. September 2012

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

21. Juli 2017

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

20. Juli 2017

Zuletzt verifiziert

1. Juli 2017

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 816186

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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