Performance bias/Concealment of allocation Process used to prevent foreknowledge of group assignment in a RCT, which should be seen as distinct from blinding
State here method used to conceal allocation and reasons for grading	Grade (circle)	Bias likely?
Concealment of allocation is explained. Provider and participants are unaware of allocation throughout treatment/observation period, respectively. Detail: ___________________________________________________________	Adequate	No
	Inadequate Not pertinent	Yes
	Unclear	Unclear