Messaging Strategies to Reduce Breast Cancer Over-screening in Older Women
- Conditions
- Breast Cancer Screening
- Interventions
- Other: messages
- Registration Number
- NCT05821023
- Lead Sponsor
- Johns Hopkins University
- Brief Summary
This is an online survey experiment with data collection over 2 time points two weeks apart. This is Aim 2 of a three-aim R01 project; overall project goal is to better understand how messages from different sources interact to affect older women's breast cancer screening decisions. In this current project, the investigators propose to test the effect of combined exposure to a clinician message + a message from another source (i.e. family/friend or media) on older women's breast cancer screening beliefs, attitudes, and intentions.
- Detailed Description
In a two-wave national online survey experiment, the investigators will randomly assign 3,000 women 65 years or older without personal history of breast cancer to 6 groups, including two control groups and four experimental groups. The experimental groups will read a message at Time 1 (T1) that may be from either family/friend or the media followed by a second message from a clinician one to two weeks later at Time 2 (T2).
The clinician message will be directed at reducing over-screening, mentioning the harms of over-screening and supporting screening cessation. The investigators will systematically vary the non-clinician message to be either consistent with the clinician message (also mentions harms of over-screening and supports screening cessation) or conflicting (mentions benefits of screening, supports continued screening and opposes screening cessation). The investigators include a no-exposure control group (Group 1) where the participants read no message at either time point and will only be asked the assessment questions. The investigators also include a single exposure group that reads only the clinician message (Group 2).
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Female
- Target Recruitment
- 4173
- Part of an online survey panel called KnowledgePanel
- able to complete survey in English
- Personal history of breast cancer
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Group 2 - control (single exposure) messages Single clinician message at T1 aimed at reducing over-screening. No message at T2. Group 6 messages T1 - message from a close family member aimed at supporting continued screening. T2 - message from clinician aimed at reducing over-screening Group 4 messages T1 - message from a close family member aimed at reducing over-screening. T2 - message from clinician aimed at reducing over-screening Group 3 messages T1 - message from media source aimed at reducing over-screening. T2 - message from clinician aimed at reducing over-screening Group 5 messages T1 - message from media source aimed at supporting continued screening. T2 - message from clinician aimed at reducing over-screening
- Primary Outcome Measures
Name Time Method Support for stopping screening for a hypothetical patient in survey vignette assessed by score on a scale Immediately after reading the assessment question Screening intention for a hypothetical patient; assessed by score on a 7 point likert scale question developed by the investigators. 7= definitely should not get a mammogram (i.e. strong support for stopping screening) 1=definitely should get a mammogram (i.e. weak support for stopping screening)
- Secondary Outcome Measures
Name Time Method Breast cancer screening attitude on mammogram being worthwhile as assessed by score on a scale Immediately after reading the assessment question Attitude toward mammogram being worthwhile; assessed by score on a 5 point likert scale question developed by the investigators.
Breast cancer screening intention for participant assessed by score on a scale Immediately after reading the assessment question Screening intention assessed by score on a 7 point likert scale question developed by the investigators. 7= very unlikely to get a mammogram (i.e. high intention to stop screening); 1= very likely to get a mammogram (i.e. low intention to stop screening)
Breast cancer screening attitude on mammogram importance as assessed by score on a scale Immediately after reading the assessment question Attitude toward mammogram importance; assessed by score on a 5 point likert scale question developed by the investigators.
Message effectiveness toward thinking about getting a mammogram as assessed by score on a scale Immediately after reading the assessment question Message effectiveness toward thinking carefully about getting a mammogram; assessed by a 5 point likert scale question developed by the investigators.
Breast cancer screening attitude on benefits of mammograms as assessed by score on a scale Immediately after reading the assessment question Attitude toward mammogram benefits; assessed by score on a 5 point likert scale question developed by the investigators.
Message effectiveness toward finding out more about downsides of getting a mammogram as assessed by score on a scale Immediately after reading the assessment question Message effectiveness toward finding out more information about the potential downsides of getting a mammogram; assessed by a 5 point likert scale question developed by the investigators.
Message effectiveness toward finding out more about the benefits of a mammogram as assessed by score on a scale Immediately after reading the assessment question Message effectiveness toward finding out more information about the potential benefits of getting a mammogram; assessed by a 5 point likert scale question developed by the investigators.
Trial Locations
- Locations (1)
Johns Hopkins University
🇺🇸Baltimore, Maryland, United States