"This is the peer reviewed version of the following article: Cooper, NAM, Khan, KS, Justin Clark, T. Evidence quality in clinical guidelines: a comparison of two methods. Acta Obstet Gynecol Scand 2015; 94: 1283– 1289. which has been published in final form at https://doi.org/10.1111/aogs.12759. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."