Table 1.
Schedule of study visits, assessment and procedures
| Screening phone call | Enrolment and baseline (Visit 1) |
Allocation | Intervention (Visit 2) |
Accompanied shop (Visit 3) |
Followup (Visit 4) |
|
|---|---|---|---|---|---|---|
| Time point (weeks from baseline) | −1 | 0 | 2 | 2–3 | 4–9 | 9–10 |
| Responsibility | Central research team | Central research team | Independent researcher | Healthcare professional | Central research team | Central research team |
| STUDY PROCEDURES | ||||||
| Eligibility assessment | ✓ | |||||
| Informed consent | ✓ | |||||
| Baseline assessment including: | ✓ | |||||
| Blood pressure | ✓ | |||||
| Height and weight | ✓ | |||||
| Medical history and medications | ✓ | |||||
| Shopping and diet questionnaire | ✓ | |||||
| Instruction on baseline run-in data collection | ✓ | |||||
| Urine sample collection | ✓ (+ up to 2 weeks) | |||||
| Randomisation | ✓ | |||||
| Intervention delivery | ✓ | |||||
| Accompanied shop and interview | ✓ | |||||
| Follow-up outcome measures including: | ✓ | |||||
| Blood pressure | ✓ | |||||
| Medical history and medication review | ✓ | |||||
| Intervention acceptability questionnaire | ✓ | |||||
| Urine sample collection |
✓ ✓ (+ up to 7 days) |
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