Abstract
Background When conducting reviews, obtaining unreported information by contacting corresponding authors via traditional methods of correspondence, such as email/postage has become increasingly challenging. Objective/s The current study aimed to identify the different non-traditional sources and approaches to obtain unreported data from respective authors of primary studies eligible for systematic reviews and meta-analyses. Methods Unreported data were obtained initially through traditional methods (email/telephone, searching forward citations of the articles, review of other publications of the same research team and perusal of authors’ institutional profiles). The second stage included communication through digital/social media, which comprised Facebook, ResearchGate, WhatsApp, Viber, LinkedIn, and the online Global Health Data Exchange (GHDx). Results During data extraction, 41 individual data items were missing/unreported, and we were able to identify 36 (87.8%) during data tracing, using both traditional ( n = 10, 27.8%) and digital and social media-based ( n = 26, 72.2%) methods. These 26 data items were identified through the following methods, (a) Facebook ( n = 6), (b) ResearchGate ( n = 3), (c) WhatsApp ( n = 3), (d) Viber ( n = 1), (e) LinkedIn ( n = 1) and GHDx database ( n = 12). Conclusion Digital/social media platforms were found to be more successful to obtain unreported data. We believe that a combination of both methods is likely to yield the best results in tracing missing data for systematic reviews. Journals should consider including social media links and non-institutional research profiles in addition to traditional methods for correspondence.
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More From: Research Methods in Medicine & Health Sciences
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