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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