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The goal of this online randomized trial is to examine the effectiveness of Front-of-package (FOP) warning labels for added sugar content on the intent-to-purchases of SSBs in an affluent Asian setting. We hypothesize the FOP warning labels are significantly associated with a reduction of consumers' purchase intention of sugar-sweetened beverages (SSBs).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| no label (control) | No Intervention | ||
| Hong Kong-style labels | Active Comparator |
| |
| UK-style traffic light labels | Experimental |
| |
| Chile-style octagonal labels | Experimental |
| |
| text warning labels | Experimental |
| |
| text-and-graphic warning labels | Experimental |
| |
| teaspoon labels | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| UK-style traffic light labels | Other | UK-style traffic light labels displaying "HIGH ADDED SUGAR" in a red circle, "MEDIUM ADDED SUGAR" in a yellow circle, "LOW ADDED SUGAR" in a green circle, or "ZERO ADDED SUGAR" in a green circle |
| Measure | Description | Time Frame |
|---|---|---|
| Proportion of the participant selects a sugar-sweetened beverage in the beverage choice task | Enrollment |
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Inclusion Criteria:
• Hong Kong residents aged 18 years or older and be able to understand either English or Chinese
Exclusion Criteria:
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| Chile-style octagonal labels | Other | Chile-style octagonal labels displaying "HIGH ADDED SUGAR" |
|
| text warning labels | Other | text warning labels stating that drinking beverages with added sugar contributes to diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages |
|
| text-and-graphic warning labels | Other | text-and-graphic warning labels displaying the same message as the text warning label with simple graphics representing diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages |
|
| teaspoon labels | Other | teaspoon labels showing the number of teaspoons of added sugar per 100 mL, applied to all added-sugar levels |
|
| Hong Kong-style labels | Other | Hong Kong-style labels, adapted from the voluntary "Salt / Sugar" Label Scheme for prepackaged food products, displaying "LOW SUGAR" or "NO SUGAR" inside a diamond shape with a tick mark at the bottom |
|
| ID | Term |
|---|---|
| D009765 | Obesity |
| D050177 | Overweight |
| ID | Term |
|---|---|
| D044343 | Overnutrition |
| D009748 | Nutrition Disorders |
| D009750 | Nutritional and Metabolic Diseases |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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