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Table 6 Review authors’ working countries

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

Author countries Number of authors % of authors
USA 162 28.4
UK 140 24.5
Canada 38 6.7
Norway 35 6.1
Denmark 24 4.2
Australia 17 3.0
The Netherlands 13 2.3
South Africa 11 1.9
Switzerland 6 1.1
Sweden 3 0.5
Other 16 2.8
Unclear 3 0.5
Total 468 82.0
N/A 102 17.9
Total with N/A 570 99.9
  1. N/A the number of authors for whom their working country is not reported in the review