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Booking visit
10 weeks | Collect height and weight measurements to check BMI is ≥30 |
| Explain study, give information leaflet, and record verbal interest with sticker on notes |
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Consultation 1
14–16 weeks | Confirm eligibility, explain study, obtain written consent, and build rapport with the woman |
| Enter mobile number and due date into the system |
| Explain the initial goal setting and text messages, selecting days and times |
| Measure woman’s weight and height measurements to confirm BMI and share with her |
| Give 1-week food and activity diary to complete by next visit |
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Consultation 2
16–18 weeks | Review the food and activity diary and use this information to guide woman to select two goals |
| Agree on one diet and one physical activity goal |
| Select 6–10 text messages from a predefined list relevant to those goals and specify times and days |
| Explain the diet and activity record and how to complete it weekly |
| Measure woman’s weight and share with her |
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Follow-up appointment
28 weeks | Review the diet and activity record, current goals, and texts and change texts/goals as required |
| Collect first diet and activity record (16–28 weeks); issue the second one (29–36 weeks) |
| Measure woman’s weight and share with her |
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Follow-up appointment
36 weeks | Collect diet and activity record, and reflect on progress |
| Measure woman’s weight and share with her |
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Telephone calls
at 20, 24, and 32 weeks | Review progress, set new goals, or change texts as required |
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