. Author manuscript; available in PMC: 2011 Nov 1.

Published in final edited form as: J Clin Epidemiol. 2010 Jun 17;63(11):1271–1275. doi: 10.1016/j.jclinepi.2010.03.006

Table 1.

Summary of the ten PRECIS domains

Domain	Description
1	Eligibility criteria for trial participants
2	Extent of flexibility in application of the experimental intervention
3	Degree of practitioner expertise in applying and monitoring the experimental intervention
4	Extent of flexibility in application of the comparison intervention(s)
5	Degree of practitioner expertise in applying and monitoring the comparison intervention(s)
6	Intensity of follow-up of trial participants
7	Nature of the primary outcome
8	Intensity of measurements of participants’ compliance to study protocol and whether compliance improving strategies are used
9	Intensity of measurements of practitioners’ adherence to study protocol and whether adherence improving strategies are used.
10	Specification and scope of analysis of primary outcome