Improving dietary behaviours to reduce diet-related disease risk Nutritional, Metabolic, Endocrine
Conditions
Interventions
Current interventions as of 02/02/2015:
A complex workplace dietary intervention will be conducted over a period of 20-23 months in four large manufacturing workplaces in Cork using a cluster control
Sponsors
University College Cork (Ireland)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Current inclusion criteria as of 02/02/2015: Workplace selection: A list of Cork-based manufacturing companies were obtained from the industrial development authority website and systematically contacted in alphabetical order. A total of 20 potentially suitable companies were contacted based on size and staff profile. The four most suitable workplaces were then purposively selected based on meetings with individual workplace stakeholders (i.e. HR manager, catering manager). Only workplaces that employed >250 employees, operated a daily workplace canteen and were able to commit to the intervention elements for the study duration were eligible. Employee selection: Only permanent, full-time employees who purchase and consume at least one main meal from their workplace canteens daily are eligible to participate. Lists of permanent, full-time employees were obtained from the HR manager in each workplace. Employees were randomly selected to participate using random number generation software and then screened for eligibility. The number of employees recruited per workplace reflected the difference in company size. The sample had 80% power at the 5% significance level to detect a decrease in BMI by 1 kg/m2 and a 2 g average fall in dietary salt intake between the control and intervention groups post-delivery of the interventions. Previous inclusion criteria: While the data will be collected at the individual level, the primary unit of analysis will be at the workplace level. Only workplaces and employees that meet the specified selection criteria will be recruited. Inclusion criteria: Workplace level: 1. Any manufacturing multi-national workplace that employs more than 250 employees 2. Has a daily workplace canteen for employees can be included in the study 3. The workplace must be located in Cork 4. Represented on the Industrial Development Agency (IDA) website 5. Able to commit to all components of the complex intervention for the duration of the study Individual level: 1. Any permanent, full-time employee who is contracted to work for the duration of the study period 2. Purchases and consumes at least one meal in the main canteen daily
Exclusion criteria
Exclusion criteria: Current exclusion criteria as of 02/02/2015: Workplaces were excluded if they were not a Cork-based manufacturing workplace represented on the Industrial Development Agency (IDA) website employing less than 250 employees; not operating a daily workplace canteen and unable to commit to the intervention elements for the duration of the study Employees will be excluded if they: 1. Have a part-time contract 2. Do not have contracts to work during the study period or are temporary contractors 3. Do not work in the workplace full-time (for example, work from home 2 days a week) 4. Travel regularly for work (= once a month) 5. Do not purchase and consume a main meal from the staff canteen daily 6. Are medically advised not to participate in the study/on long-term sick leave or pregnant 7. Are likely to leave the company during the study (i.e. retirement) 8. Are involved in an ongoing diet programme external or internal to work (e.g. Weight Watchers). However, all participating workplaces will be requested not to implement any dietary or physical activity initiatives during the study period Previous exclusion criteria: Workplace level: 1. All non-manufacturing national workplaces that employ less than 250 employees 2. Do not have a workplace canteen 3. Are not represented in the IDA website 4. Not located in Cork 5. Not able to commit to the intervention design for the study period Individual level: Employees will be excluded if they are: 1. Part-time employees 2. Employees that do not have contracts to work during the study period 3. Employees that do not work in the workplace full-time (e.g. work from home 2 days a week) 4. Employees that travel regularly for work (more than once a month) 5. Do not purchase and consume a main meal from the staff canteen daily 6. Medically advised not to participate in the study 7. Involved in an on-going diet programme external to work (e.g. weight watchers)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Current primary outcome measures as of 02/02/2015: Study outcomes will assess the effect of the intervention on dietary behaviours and improvements in diet-related disease risk. Primary outcomes will include changes in employee’s dietary intakes of salt and changes in body mass index (BMI). Previous primary outcome measures: Study outcomes will assess the effect of the intervention on dietary behaviours and improved diet-related disease risk. Primary outcomes will include changes in dietary behaviour and health status. 1. Analysis of multiple 24-hour dietary recalls, food frequency questionnaires, food sales data and food purchasing patterns will indicate changes in dietary behaviour. 2. Changes in body mass index (BMI), waist circumference, resting blood pressure and urinary electrolytes including sodium and potassium (24-hour urine collections and random urine samples) will highlight improved health status outcomes. | — |
Secondary
| Measure | Time frame |
|---|---|
| Current secondary outcome measures as of 02/02/2015: Secondary outcomes will include changes in dietary intakes of total fat and total sugars, the DASH score as an overall measure of diet quality, nutrition knowledge and economic cost outcomes. Previous secondary outcome measures: Secondary outcomes will determine food motives and eating behaviours, changes in nutrition knowledge, and economic cost outcomes. A cost-effectiveness economic evaluation will be conducted and absenteeism trends will be recorded during the study period. | — |
Countries
Ireland
Outcome results
None listed