Additional file 3: Search string development. The development of the search string with terms used in the search blocks, how they were combined, how many hits individual blocks as well as block combin
This Stata .do file provides the code used to analyse the data extracted and coded from systematic reviews included in the paper: Cumpston MS, Brennan SE, Ryan R, McKenzie JE. 2023. Statistical synthe
Background: Existing study quality and risk of bias lists for observational studies have important disadvantages. For this reason, a comprehensive widely applicable quality assessment tool for observa