Updated recommendations for the Cochrane rapid review methods guidance for rapid reviews of effectiveness.

Competing Interests: Competing interests: All authors have completed the ICMJE disclosure form at http://www.icmje.org/disclosure-of-interest/ and declare: support from Cochrane for the submitted work. Certain methods studies upon which some of the recommendations are based have been carried out by authors of this guidance (GG, BNS, CH, CG, VJK, and CK). UG, BNS, and MT planned and carried out the evaluation study of the interim rapid review methods guidance.