Communicating Objective Risk for Personalized Decision Making About Mammography
20 juillet 2017 mis à jour par: 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.
Aperçu de l'étude
Statut
Complété
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Interventionnel
Inscription (Réel)
1560
Phase
- N'est pas applicable
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
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Pennsylvania
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Philadelphia, Pennsylvania, États-Unis, 19104
- University of Pennsylvania
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
35 ans à 49 ans (Adulte)
Accepte les volontaires sains
Oui
Sexes éligibles pour l'étude
Femelle
La description
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.
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Autre
- Répartition: Randomisé
- Modèle interventionnel: Affectation factorielle
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Aucune intervention: Control group 1: pre/post-test
Group receives pre and post test questions only.
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Expérimental: Control group 2: tool and pre/post-test
Group receives decision tool without personalized information.
(Behavioral: Decision Aid)
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Expérimental: Gail score in a percentage format
Group receives Gail score in a percentage format.
(Behavioral: Decision Aid)
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Expérimental: Gail score in a frequency format
Group receives Gail score in a frequency format.
(Behavioral: Decision Aid)
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Expérimental: 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)
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Expérimental: Frequency + Mammography Data
Group receives Gail score in a frequency format as well as information about the risks of mammography.
(Behavioral: Decision Aid)
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Expérimental: Frequency + Mortality Data
Group receives Gail score in a frequency format as well as information about mortality benefit of mammography.
(Behavioral:Decision Aid)
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Expérimental: 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)
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Behavioral intentions to get a mammogram
Délai: immediately following intervention (time 0)
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All participants will be asked to report their behavioral intentions to obtain mammograms in their 40s and at age 50.
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immediately following intervention (time 0)
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Attitude about mammography
Délai: immediately following intervention (time 0)
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Participants will be asked to report their attitudes about mammography (i.e., is a mammogram useful, harmful, etc.)
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immediately following intervention (time 0)
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Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Injunctive and descriptive norms about mammography
Délai: immediately following intervention (time 0)
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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.
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immediately following intervention (time 0)
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Decisional satisfaction
Délai: immediately following intervention (time 0)
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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."
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immediately following intervention (time 0)
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Risk perception
Délai: immediately before and after intervention (time 0)
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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)."
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immediately before and after intervention (time 0)
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Clarity of the information being presented
Délai: immediately following intervention (time 0)
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These items assess how easy it is for participants to understand the numerical information that is provided in the decision aid.
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immediately following intervention (time 0)
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Credibility of the information
Délai: immediately following intervention (time 0)
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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?"
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immediately following intervention (time 0)
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Emotional reactions
Délai: immediately following intervention (time 0)
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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?"
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immediately following intervention (time 0)
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Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Les enquêteurs
- Chercheur principal: Joseph N Cappella, PhD, University of Pennsylvania
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude
1 septembre 2012
Achèvement primaire (Réel)
18 décembre 2012
Achèvement de l'étude (Réel)
18 décembre 2012
Dates d'inscription aux études
Première soumission
28 août 2012
Première soumission répondant aux critères de contrôle qualité
17 septembre 2012
Première publication (Estimation)
18 septembre 2012
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
21 juillet 2017
Dernière mise à jour soumise répondant aux critères de contrôle qualité
20 juillet 2017
Dernière vérification
1 juillet 2017
Plus d'information
Termes liés à cette étude
Autres numéros d'identification d'étude
- 816186
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .