Table 1.
Description of items and response options used in the analysis
| Concept | Item wording (where applicable) | Response options | |
| All | Categories used in the analysis | ||
| Age | How old are you? | In years | 18–24 years |
| 25–34 years | |||
| 35–44 years | |||
| 45–54 years | |||
| 55–64 years | |||
| Sex | What sex were you assigned at birth, meaning on your original birth certificate? | Female | Female |
| Male | Male | ||
| Education | What is the highest level of education you have completed? | Qualifications not listed below, free-text equivalents, Don’t know, Refuse to answer | School level |
| NVQ Level 4–5, HNC, HND, RSA Higher Diploma, BTEC Higher Level, Degree, Higher Degree, free-text equivalents | Postschool level | ||
| Income sufficiency | How easy is it to make ends meet? | Neither easy nor difficult, Difficult, Very difficult, Don’t know, Refuse to answer | Not easy |
| Very easy, Easy | Easy | ||
| Children | Do you have any children (including stepchildren or adopted children) under the age of 18? | No, Don’t know, Refuse to answer | No |
| Yes | Yes | ||
| SSB consumption | (Calculated from Beverage Frequency Questionnaire: reported consumption over last 7 days) | Any consumption of non-diet fizzy drinks, Sweetened fruit juice drinks, Regular sports drinks, Regular energy drinks or Spirits with mixers that have calories | Consumers |
| No consumption of above | Non-consumers | ||
| Social norms | People important to me try not to drink sugary drinks | Neither agree nor disagree, Disagree, Strongly disagree, Don’t know, Refuse to answer | Not agree |
| Strongly agree, Agree | Agree | ||
| Attitudes | Sugary drinks taste good | Strongly agree, Agree | Agree |
| Neither agree nor disagree, Disagree, Strongly disagree, Don’t know, Refuse to answer | Not agree | ||
| Knowledge | Frequently drinking sugary drinks increases the risk of obesity | False, Don’t know, Refuse to answer | Not true |
| True | True | ||
| Expert trust | I trust messages from health experts on sugary drinks | Neither agree nor disagree, Disagree, Strongly disagree, Don’t know, Refuse to answer | Not agree |
| Strongly agree, Agree | Agree | ||
| Industry trust | I trust messages from the food and beverage industry on sugary drinks | Neither agree nor disagree, Disagree, Strongly disagree, Don’t know, Refuse to answer | Not agree |
| Strongly agree, Agree | Agree | ||
| Support | In 2018 a new sugary drink tax will be/was introduced in the UK. This aims to encourage manufacturers to reduce the sugar in drinks. The money will be spent on breakfast clubs and sports in primary schools. Do you support or oppose this policy? | Strongly support, Support | Support |
| Oppose, Strongly oppose, Don’t know, Refuse to answer | Oppose | ||
| Effectiveness | Preamble as above. How effective do you think these kinds of policies would be/are? | Somewhat effective, Mostly effective, Very effective | Effective |
| Not at all effective, Don’t know, Refuse to answer | Not effective | ||
BTEC, Business and Technology Education Council; HNC, Higher National Certificate; HND, Higher National Diploma; NVQ, National Vocational Qualification; RSA, Royal Society of Arts; SSB, sugar-sweetened beverage.