Nutrition Nutritional, Metabolic, Endocrine
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Participants must: 1. Be resident in the UK 2. Be the holder of a participating supermarket loyalty card 3. Be at least 18 years of age 4. Have used their loyalty card to purchase food at an outlet of the participating supermarket covering at least 8000 square feet at least once in the month preceding recruitment 5. Be the primary shopper for the household 6. Report that they purchased at least 10 ready meals and/or pizzas in the previous 6 months
Exclusion criteria
Exclusion criteria: Participants will be excluded if they are planning to leave the UK for a period of 3 weeks or more during the intervention period
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Current primary outcome measures as of 24/07/2014: 1. Assessment of recruitment (measured when recruitment closes, 2 weeks after initial recruitment email), retention and data completion rates (measured after week 18, when the trial ends) 2. Healthiness of ready meals and pizzas purchased during the intervention period (measured in weeks 1-6) 3. Healthiness of ready meals and pizzas purchased during the follow-up period (measured in weeks 7-18) Here ?healthiness? is defined using an algorithm to combine the information provided in the front of pack food labels on the purchased ready meals. Primary outcomes 2 and 3 will be adjusted for age, sex, presence of dependent children, and healthiness of ready meals and pizzas purchased in the 6 months prior to recruitment. Previous primary outcome measures: 1. Assessment of recruitment (measured when recruitment closes, 2 weeks after initial recruitment email), retention and data completion rates (measured after week 22, when the trial ends) 2. Healthiness of ready meals and pizzas purchased during the intervention period (measured in weeks 1-6) 3. Healthiness of ready meals and pizzas purchased during the follow-up period (measured in weeks 7-22) Here ?healthiness? is defined using an algorithm to combine the information provided in the front of pack food labels on the purchased ready meals. Primary outcomes 2 and 3 will be adjusted for age, sex, presence of dependent children, and healthiness of ready meals and pizzas purchased in the 6 months prior to recruitment. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Amount (£) of ready meals and pizzas purchased in intervention (measured in weeks 1-6)/follow-up period (measured in weeks 7-22) 2. Total amount (g) of fat, saturated fat, sugar and salt in ready meals purchased in intervention (measured in weeks 1-6)/follow-up period (measured in weeks 7-22) 3. Amount (£) of all foods purchased in intervention (measured in weeks 1-6)/follow-up period (measured in weeks 7-22) 4. Amount (£) of fruit and vegetables purchased in intervention (measured in weeks 1-6)/follow-up period (measured in weeks 7-22) 5. Psychosocial variables related to front of pack food label use measured in week 7 and week 22 Secondary outcomes 1-4 will be adjusted for age, sex, presence of dependent children and similar variables measured using electronic sales data for the 6 months prior to recruitment. Secondary outcome 5 will be adjusted for age, sex, presence of dependent children and psychosocial variables collected at recruitment. | — |
Countries
United Kingdom