Study designs of evaluations included in the review
Post-marketing surveillance studies, clinical trials, case reports, spontaneous reporting schemes and pre-clinical studies were eligible for inclusion in the review.
Specific interventions included in the review
To be included a study needed to discuss the efficacy or safety of Kombucha, a remedy which is usually marketed as a fermented tea for oral consumption or topical use in a wide range of indications.
Participants included in the review
All types of participant were eligible for inclusion in the review.
Outcomes assessed in the review
Specific inclusion criteria for the outcomes were not stated, although it appears that all outcomes relating to efficacy or safety were eligible for inclusion in the review.
How were decisions on the relevance of primary studies made?
The author did not state how the papers were selected for the review, or how many reviewers performed the selection.