None listed
Conditions
Brief summary
This project aims to investigate the effectiveness of an online, personalised intervention on salt reduction (called SaltED) in adults with high blood pressure. It hypothesises that SaltED is effective in reducing salt intake. Participants will be automatically randomised into two groups (active intervention or wait-listed control) by a computer algorithm to conceal allocation the first time they access the SaltED website. The intervention includes 6 modules of personalised salt intake advice delivered over 6 weeks. Module content will be personalised based on the participant's current salt intake (measured using a short questionnaire at week 1) and knowledge and use of food labels. Participants in the active intervention group will receive the intervention content from week 1. Participants in the control group will not receive the personalised intervention materials, until after their post-intervention measures, when they will be invited to access the intervention materials. Participants' sodium score and dietary sodium intake will be measured as primary outcomes at week 1 (baseline) and week 6 (post-intervention). Participants will also be invited (optional) to complete the 24-hour ambulatory blood pressure and urinary sodium measurements at baseline and post-intervention as secondary outcomes. Participants' acceptability and use of the platform will also be investigated using a survey post-intervention.
Interventions
Active intervention group: an online computer-tailored intervention that provides personalised feedback based on participants' food choices.
The intervention includes 6 modules of personalised salt intake advice delivered over 6 weeks. Participants will be directed to the platform website (salted.org.au) to register. Weekly email notifications with a link to the SaltED page will be sent to participants.
Participants will be asked to spend at least 1 hour every week (for 6 weeks) on the Module
Active intervention group: an online computer-tailored intervention that provides personalised feedback based on participants' food choices. The intervention includes 6 modules of personalised salt intake advice delivered over 6 weeks. Participants will be directed to the platform website (salted.org.au) to register. Weekly email notifications with a link to the SaltED page will be sent to participants. Participants will be asked to spend at least 1 hour every week (for 6 weeks) on the Module content and complete the activities. Module content will be personalised based on the participant's current salt intake (measured using a validated short Score Sodium Questionnaire at week 1) and knowledge and use of food labels. The personalised feedback will be on commercial food groups/items that are high in salt and how to choose alternatives by reading labels. Each week they will receive personalised feedback on selected groups of commercial foods (e.g. bread, cereals, biscuits and baking products). They will also receive weekly mini quiz games (approximately 2 minutes to complete per quiz) based on the content of the previous week. They will also receive feedback on these quizzes. Web-portal analytics will be used to monitor adherence to the intervention.
Sponsors
Dr Saman Khalesi
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Educational / counselling / training
Masking
Open (masking not used)
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Adults (18 years of age and older) with medically diagnosed hypertension or those with consistent systolic blood pressure greater than or equal to 130 mmHg and/or diastolic blood pressure greater than or equal to 85 mmHg who are able to access the Internet via a computer, tablet, laptop or smartphone and consent to the study will be eligible to participate in this project.
Exclusion criteria
Participants who are pregnant or those who are following strict medical nutrition therapy for conditions other than hypertension (e.g. chronic kidney disease, cirrhosis, chemotherapy, heart failure, etc.) will be excluded.
Outcome results
None listed