Monetary incentives: addition of monetary reward vs usual follow‐up
Retention [ · trial participants being followed up for data collection
It is very uncertain whether monetary incentives: addition of monetary reward changes retention [ compared with usual follow‐up (very low certainty).
1 finding from 1 review
- RR 1.02 [0.96, 1.09]3 studies · 1159 participantsVery low