Overdiagnosis and Breast Cancer Screening Decisions

Summary

This is a survey-based study using an online panel. The goal of the study is to understand whether information about overdiagnosis influences breast cancer screening intention among older women. Participants are first asked a series of questions about breast cancer screening including their intention to continue screening, knowledge of screening, and beliefs about screening. They are then shown one of three videos about breast cancer screening that contain information about overdiagnosis or a fourth control video that is identical but contains no information about overdiagnosis. Participants are then again asked about screening intention, along with knowledge of screening, overdiagnosis, and questions around trust.

Conditions

• Mammography Screening
• Geriatrics
• Decision Aid

Interventions

BEHAVIORAL

Breast cancer screening decision aid -- low risk

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the low risk of overdiagnosis arm will view a version of the decision aid the describes a low risk of overdiagnosis.

BEHAVIORAL

Breast cancer decision aid -- moderate risk

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the moderate risk of overdiagnosis arm will view a version of the decision aid the describes a moderate risk of overdiagnosis.

BEHAVIORAL

Breast cancer screening decision aid -- high risk

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the high risk of overdiagnosis arm will view a version of the decision aid the describes a high risk of overdiagnosis.

OTHER

Control condition

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the control arm will view a version of the decision aid that does not contain any information about overdiagnosis.

Sponsors & Collaborators

• National Institutes of Health (NIH)

  collaborator NIH

• National Cancer Institute (NCI)

  collaborator NIH

• Yale University

  lead OTHER

Principal Investigators

• Ilana Richman, MD · Yale University

Study Design

Allocation

RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

70 Years

Sex

FEMALE

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2025-08-19

Primary Completion

2025-10-20

Completion

2025-10-20

Countries

• United States

Study Locations