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Weight bias in dietitians is prevalent and may affect patient care. The investigators conducted a randomized controlled trial to test if explicit and implicit bias could be influenced by a short, 20 minute educational video.
This randomized controlled trial studied the effect of three different videos on weight bias in a nationally representative sample of dietitians. The "intervention" group (I) watched a video about the etiology of obesity, reasons for weight regain, and how to talk to patients about weight. The first "control" group (C1) received information about the role of the environment and individual behavior in weight gain, and tools to help patients control their weight. The second control group (C2) received a weight neutral video about the role of dieticians in society. Bias measures were taken before and just after watching the video, and again one month later.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention (I) | Experimental | This arm was randomized to a 20 min video that emphasized information about factors other than individual behaviors that influence weight, weight loss and ability to maintain weight. It also indirectly addressed weight bias by explaining how to have conversation about weight and health with a patient with obesity that is free of biases. |
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| Weight Control (C1) | Active Comparator | This arm was randomized to a 20 min video that emphasized the controllable aspects of weight and gave dietitians an overview of a tool to help plan and monitor weight loss. |
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| Weight Neutral Control (C2) | Placebo Comparator | The arm was randomized to a 20 min video about the role dietitians play in society, that made no mention of weight or obesity. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Online Educational Videos | Other | The videos were developed by the researchers based on a prior study to test if specific information about obesity and weight control influence weight bias. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in "Blame" explicit bias | "Blame" subscore of Anti-fat Attitudes Test, higher score means more bias | Change from pre to immediately post intervention (1 hour) |
| Change in "Blame" explicit bias | "Blame" subscore of Anti-fat Attitudes Test, higher score means more bias | Change from pre to 1 month post intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Change in "Social" explicit bias | "Social" subscore of Anti-fat Attitudes Test, higher score means more bias | Change from pre to immediately post intervention (1 hour) |
| Change in "Social" explicit bias |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Texas Tech University | Lubbock | Texas | 79409 | United States |
We have a primary and secondary analysis planned for these data, once they are both published we will share the data within 6 months time via ICSPR database.
Within 6 months of publication, data will be available.
Public Access Database.
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Participants were told they would be participating in a study that aims to determine the effectiveness of online education in dietitians. They were unaware that determining the effect of the videos on weight bias was the objective of the study.
"Social" subscore of Anti-fat Attitudes Test, higher score means more bias
| Change from pre to 1 month post intervention |
| Change in "Physical" explicit bias | "Physical" subscore of Anti-fat Attitudes Test, higher score means more bias | Change from pre to immediately post intervention (1 hour) |
| Change in "Physical" explicit bias | "Physical" subscore of Anti-fat Attitudes Test, higher score means more bias | Change from pre to 1 month post intervention |
| Change in Implicit Bias | Category of bias from Weight Implicit Association Test; Categories 1-4, higher category means more bias | Change from pre to immediately post intervention (1 hour) |
| Change in Implicit Bias | Category of bias from Weight Implicit Association Test; Categories 1-4, higher category means more bias | Change from pre to 1 month post intervention |