deletions | additions       diff --git a/To_ensure_accurate_coding_and__.tex b/To_ensure_accurate_coding_and__.tex  index cfc0dac..9bf6161 100644  --- a/To_ensure_accurate_coding_and__.tex  +++ b/To_ensure_accurate_coding_and__.tex 
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To ensure accurate coding and clear directions, an abstraction manual was developed and piloted prior to training coders. A training session was conducted to familiarize coders with the process, and a subset of studies from the screening process were jointly coded as a group. Coding elements included: title of the article, authors’ names, year of publication, and whether clinical trial registries were searched and, if so, the names of the registries used. After training, each coder was given three new articles to code independently. These data were analyzed for inter-rater agreement by calculating the Kappa statistic. As inter-rater agreement was acceptable (k = 0.65; agreement = 75 percent), each coder was assigned an equal number of articles to code. After the initial coding process, validation checks were conducted such that each coded element was verified by a second coder. After these checks were performed, coders met to discuss disagreements and settle them by consensus. Analysis of the final data was conducted using STATA 13.1. Data from this study are publicly available at url{http://dx.doi.org/10.6084/m9.figshare.1491500}.