Table 1 Financial incentives per study arm
Study arm | Contingent incentives | Non-contingent payment | Assessment incentives | Total payments |
|---|---|---|---|---|
Control | None | Yes (SGD75 paid at month 6) | SGD15 at each study assessment (baseline, month 3 and month 6) | Non-contingent payment: SGD75 Assessment payments: SGD45 Total: SGD120 |
Process | SGD3.50 weekly: for measuring blood glucose on 3 non-consecutive days/week SGD0.50 daily: for taking medication daily as prescribed SGD1 daily: for regular physical activity (8000 steps/day) | None | SGD15 at each study assessment (baseline, month 3 and month 6) | Maximum incentive payments: SGD336 Assessment payments: SGD45 Total: SGD45 to SGD381 |
Outcome | SGD2 weekly for 1 glucose reading per week being in normal range (between 4 to 7Â mmol/L) SGD7 weekly for 2 glucose readings per week being in normal range (between 4 to 7Â mmol/L) SGD14 weekly for 3 glucose readings per week being in normal range (between 4 to 7Â mmol/L) | None | SGD15 at each study assessment (baseline, month 3 and month 6) | Maximum incentive payments: SGD336 Assessment payments: SGD45 Total: SGD45 to SGD381 |