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| ID | Type | Description | Link |
|---|---|---|---|
| K08CA248725 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Institutes of Health (NIH) | NIH |
| National Cancer Institute (NCI) | NIH |
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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low risk of overdiagnosis | Experimental | Participants in this arm will be shown a decision aid in which risk of overdiagnosis is low. |
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| Moderate risk of overdiagnosis | Experimental | Participants in this arm will be shown a decision aid in which risk of overdiagnosis is moderate. |
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| High risk of overdiagnosis | Experimental | Participants in this arm will be shown a decision aid in which risk of overdiagnosis is high. |
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| Control | Active Comparator | Participants in this arm will be shown a video about breast cancer screening that is identical in all ways but contains no information about overdiagnosis. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Breast cancer screening decision aid -- low risk | Behavioral | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| Participants intention to screen | Intention to screen, measured on a 15 point scale. Total score range 1-15, lower score means less likely to screen. | Day 1 |
| Measure | Description | Time Frame |
|---|---|---|
| Knowledge of breast cancer screening | Knowledge of screening will be quantified as the proportion of correct answers out of a total possible 7 questions in the pre test and 11 questions in the post test. | Day 1 |
| Understanding of overdiagnosis |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ilana Richman, MD | Yale University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Yale School of Medicine | New Haven | Connecticut | 06511 | United States |
Deidentified data
Supporting information is available immediately from investigators. Individual patient data will be available beginning one year after data collection.
Available to qualified researchers upon request.
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| Breast cancer decision aid -- moderate risk | Behavioral | 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. |
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| Breast cancer screening decision aid -- high risk | Behavioral | 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. |
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| Control condition | Other | 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. |
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Understanding of overdiagnosis will be quantified as proportion of correct responses out of 3 questions about overdiagnosis.
| Day 1 |