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Table 7 Barriers to and facilitators of including non-English studies

From: The prevalence of and factors associated with inclusion of non-English language studies in Campbell systematic reviews: a survey and meta-epidemiological study

Barriers Number (%) of reviews that identify this as a barrier Facilitators Number (%) of reviews that identify this as a facilitator
Cost and time 18 (38.3) Language resources 20 (42.6)
Lack of language resources 17 (36.2) Funding and time 11 (23.4)
Lack of language skills 12 (25.5) Training in and guidelines on how to deal with non-English studies 9 (19.1)
Lack of (access to) non-English specialised databases 8 (17.0) Access to non-English specialised databases 8 (17.0)
Complacency of review authors 3 (6.4) Language skills 7 (14.9)
Biases and low quality of non-English studies 3 (6.4) Cochrane and Campbell cooperation 5 (10.6)
   Availability of quality non-English studies 3 (6.4)
Other 9 (19.1) Other 6 (12.8)
  1. N = 47. Due to the open-ended format of the questions on barriers and facilitators, respondents’ answers sometimes related to more than one theme. The total count of barriers and facilitators therefore added up to more than the number of respondents