Clinical trial · Interventional
Evaluating the Impact of Evidence-based Information About Mammography on Breast Cancer Screening Decisions
McMaster Choices Study: Evaluating the Impact of Cancer Screening Patient Decision Aids on Breast Cancer Screening Decisions
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Patient decision aids are tools that help guide individuals through a healthcare-related decision making process. They help users combine evidence-based information and recommendations by a health care provider with their personal needs, values and preferences. Through this project, Dr. Dobbins and her research team will explore whether the use of patient decision aids with high-quality and user-friendly summaries of research evidence, or summaries of research evidence alone, help to improve the quality of decision making by women facing breast cancer screening decisions.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer | Malignant Breast Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Evidence-based information | Other | — | UNRESOLVED |
| Patient Decision Aid | Behavioral | — | UNRESOLVED |
| Sham information | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (3)
- type
- EXPERIMENTAL
- label
- Experimental: Evidence + PDA
- description
- Evidence-based information on mammography such as blog posts, plain language evidence summaries and web resource ratings (quality-appraised online resources), plus a blog post on PDAs and the relevant decision aid from the Portal database
- interventionNames
- Other: Evidence-based information
- Behavioral: Patient Decision Aid
- type
- EXPERIMENTAL
- label
- Evidence only
- description
- The same evidence-based information as group 1 (Evidence + PDA), but without the PDA to quantify the effect of accessing evidence through the Portal alone
- interventionNames
- Other: Evidence-based information
- type
- SHAM_COMPARATOR
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 40 Years
- Maximum age
- 49 Years
Show eligibility criteria text
Inclusion Criteria: * English speaking women, 40-49 years old * Residents of British Columbia, Nova Scotia, and Prince Edward Island Exclusion Criteria: * History of breast cancer or mammography in the last 12 months * Classified as above-average risk for breast cancer (i.e., known genetic mutation linked to BC; no genetic testing, but a parent, sibling or child with a genetic mutation linked to BC; or received chest wall radiation before age 30)
References
Publications (0)
Data not yet available