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. 2019 Sep 26;16:E132. doi: 10.5888/pcd16.180641

Figure 1.

We identified 1,249 articles through a search of databases (Embase, n = 578; PubMed, n = 568; Cochrane, n = 76; LILACS, n = 27) and no articles through other sources. After removing duplicates, 992 articles remained and were screened. After screening titles and abstracts, 725 articles were excluded; 267 full-text articles were assessed for eligibility. Of these, 235 were excluded for the following reasons: not a systematic review (n = 96); did not report on one of the prioritized diseases (n = 50); reported on the same topic and period as an included umbrella review (n = 38); reported the same study as the included article (ie, duplicate) (n = 16); did not report on the link between prioritized diseases (n = 15); no full text or author contact details not listed (n = 10); not in English (n = 9); or did not report data separately for subjects older than 18 years (n = 1).

Flow diagram showing exclusion and inclusion process during the literature review based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) system. Articles were screened for an umbrella review of systematic reviews published between 1995 and 2017 on correlation between prevalent dental conditions and chronic diseases in Germany.