Eligibility and Randomisation
Allocation concealment uses sequentially numbered, opaque, sealed envelopes after enrolment and baseline data collection. Participants and facilitators cannot be blinded, but data analysis will be blinded to allocation.
2 sources - 10 claims
Allocation concealment uses sequentially numbered, opaque, sealed envelopes after enrolment and baseline data collection. Participants and facilitators cannot be blinded, but data analysis will be blinded to allocation.