Supermarket-based health promotion in the area of obesity and nutrition Nutritional, Metabolic, Endocrine
Conditions
Interventions
Current interventions as of 09/11/2011:
A randomised controlled trial conducted with women who shop at Coles supermarkets in Melbourne.
1. Control:
No treatment. Participants will complete the asses
and meal preparation strategies including provision of shopping lists linked to simple recipes. This is aimed at increasing the theoretical mediators, self-efficacy and perceived affordability.
2.1.3.
Sponsors
National Health and Medical Research Council (NHMRC) (Australia)
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: Current inclusion criteria as of 09/11/2011: 1. Female 2. The main household shopper 3. Aged between 18 and 60 years 4. Live in one of the selected high socio-economic and low socio-economic areas and shop regularly at one of the participating Coles supermarkets 5. A FlyBuys (Coles store loyalty card) member OR willing to sign up to FlyBuys 6. Able to give written informed consent to participate in the study 7. Willing to give information about income and dietary and mediator behaviours at three time points (baseline, post-intervention and six-month follow-up) 8. Willing to have purchase data collected and analysed 9. Able to speak, read and write in English Previous inclusion criteria from update on 25/07/2011: 4. Shop regularly at one of the participating Coles supermarkets, selected from one high socio-economic and one low socio-economic area 10. Live, and regularly shop at Coles Supermarkets, in one of two areas that will be selected based on area level socioeconomic index data (one advantaged and one disadvantaged area) Previous inclusion criteria from time of registration: 1. Female 2. The main household shopper 3. Aged between 18 and 45 years 4. Shop regularly at one of the participating Coles supermarkets, selected from one high socio-economic and one low socio-economic area 5. A FlyBuys (Coles store loyalty card) member OR willing to sign up to FlyBuys 6. Planning to continue to shop with Coles regularly over the next 12 months 7. Able to give written informed consent to participate in the study 8. Willing to give information about income and dietary and mediator behaviours at three time points (baseline, post-intervention and six-month follow-up) 9. Have an equivalised household income below AUS$------ or above AUS$------(to be confirmed) 10. Willing to have purchase data collected and analysed 11. Able to speak, read and write in English
Exclusion criteria
Exclusion criteria: Does not meet inclusion criteria
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Current primary outcome measures as of 09/11/2011: Data on demographic characteristics, key study outcomes and mediators will be collected pre- and immediately post-intervention, and at 6-month follow-up. 1. Demographics: 1.1. Age 1.2. Family structure (marital/cohabitation status, number and ages of dependent children, other household members) 1.3. Education level 1.4. Participants' own income will be assessed 2. Outcome measures: The primary outcomes of this intervention are purchasing and consumption of fruits, vegetables, and low-joule (carbonated) soft drinks/water vs. sugar-sweetened high-joule soft (carbonated) drinks. Data on purchasing of fruits, vegetables, high-joule sugar-sweetened soft drinks, low-joule soft drinks and water, and total grocery shopping expenditure, will be gathered using a combination of electronic sales data, obtained through linkage with store loyalty cards (Fly-Buys); and self-report data (to assess consumption and complement the electronic food purchasing data). Established Food Frequency and dietary recall survey measures of fruit, vegetable and low-joule vs. sugar-sweetened soft drink purchasing and consumption at the individual participants level will be used. These measures will also be used to assess purchasing and consumption of key non-core (high-energy, nutrient poor foods) and core foods at each intervention point, in order to assess potential unintended intervention consequences (such as increased purchasing of other less health-promoting foods). Measures of daily equivalent quantities (adjusted for household members/composition) and serves consumed will be calculated. Previous primary outcome measures from update on 30/06/10: Data on demographic characteristics, key study outcomes and mediators will be collected pre- and immediately post-intervention, and at 6-month follow-up. 1. Demographics: 1.1. Age 1.2. Family structure (marital/cohabitation status, number and ages of dependent children, other household member | — |
Secondary
| Measure | Time frame |
|---|---|
| As of 25/07/11: 1. Mediator measures: Self-efficacy, perceived barriers and perceived affordability will be assessed via validated self-report surveys. 2. Process evaluation outcomes: We will assess subjective perceptions of the intervention components that may be useful in predicting outcomes at the completion of the intervention. 3. Economic evaluation: A cost consequences analysis will be conducted from a societal perspective comparing incremental costs and outcomes in each of the three intervention arms to the control arm at 9 months. Intervention resource use and costs will be prospectively recorded via project team records and Coles data, supported by interviews with the project team. Household cost impact will be determined through external (Coles) data on food purchasing combined with participant self-report data on non-Coles and Coles-non-FlyBuys food purchasing over the course of the intervention and follow-up period. As of 30/06/11: 1. Mediator measures: Self-efficacy, perceived barriers and perceived affordability will be assessed via validated self-report surveys. 2. Process evaluation outcomes: We will assess subjective perceptions of the intervention components that may be useful in predicting outcomes at the completion of the intervention. 3. Economic evaluation: A cost consequences analysis will be conducted from a societal perspective comparing incremental costs and outcomes in each of the three intervention arms to the control arm at 12 months. Intervention resource use and costs will be prospectively recorded via project team records and Coles data, supported by interviews with the project team and Coles representatives. Household cost impact will be determined through external (Coles) data on food purchasing combined with household self-report data on non-Coles and Coles-non-Flybuys food purchasing over the course of the intervention and follow-up period. | — |
Countries
Australia
Outcome results
None listed