Table 3 List of text messages to be sent to the participants

1

Dear participant, many thanks for taking part in the Trial to Incentivise Adherence for Diabetes (TRIAD) study. Please remember that regular physical activity, taking medication as recommended and monitoring your glucose level will help manage your diabetes. For assistance, please contact (clinical research coordinator (CRC’s) name) at (CRC’s contact)

2–1

Dear TRIAD participant, please remember that regular physical activity, taking medication as advised and glucose level monitoring will help manage your diabetes. You will receive SGD15 for attending the month-3 visit. You will also receive SGD90 at the end of the study for recording your data and attending the month-6 visit. For assistance, please contact (CRC’s name) at (CRC’s contact)

2–2

Dear TRIAD participant, please remember that regular physical activity, taking medication as advised and glucose level monitoring will help manage your diabetes. You will earn SGD14 weekly for meeting all activity, medicine-taking and glucose testing goals. For assistance, please contact (CRC’s name) at (CRC’s contact)

2–3

Dear TRIAD participant, please remember that regular physical activity, taking medication as advised and glucose level monitoring will help manage your diabetes. You will earn SGD14 weekly for meeting your glucose level goals. For assistance, please contact (CRC’s name) at (CRC’s contact)

3–1

Dear TRIAD participant, please remember that regular physical activity, taking medication as advised and glucose level monitoring will help manage your diabetes. You will receive SGD90 at the end of the study for recording your data and attending the month-6 visit. For assistance, please contact (CRC’s name) at (CRC’s contact)

3–2

Dear TRIAD participant, please remember that regular physical activity, taking medication as advised and glucose level monitoring will help manage your diabetes. You will earn SGD14 weekly for meeting all goals. For assistance, please contact (CRC’s name) at (CRC’s contact)

3–3

Dear TRIAD participant, please remember that regular physical activity, taking medication as advised and glucose level monitoring will help manage your diabetes. You will earn SGD14 weekly for meeting your goals. For assistance, please contact (CRC’s name) at (CRC’s contact)

4

Dear TRIAD participant, a gentle reminder that if you have not yet synced your Fitbit^TM you have 1 week left to sync. If you wish you can sync at the polyclinic, please contact (CRC’s name) at (CRC’s contact). Thank you