Table 2 Summary of characteristics of included articles
|  |  | n = 23 |
|---|---|---|
Article type | Editorial / discussion | 13 |
Letter | 10 | |
Continent of origin | Europe | 12 |
United States | 6 | |
Asia | 4 | |
Australasia | 1 | |
Number of authors | 1 | 10 |
2 | 5 | |
3 | 4 | |
≥4 | 4 | |
Academic authorship | At least one professor / associate professor | 18 |
At least one other academic position | 2 | |
No academic authorship | 3 | |
Surgeon authorship | At least one consultant surgeon | 20 |
At least one trainee surgeon | 1 | |
No surgeons | 2 | |
Journal impact factor | < 2 | 1 |
2–4.9 | 11 | |
5–9.9 | 1 | |
10–19.9 | 0 | |
≥20 | 8 | |
N/A | 2 | |
Year of publication | 2012 | 10 |
2013 | 5 | |
2014 | 0 | |
2015 | 3 | |
2016 | 1 | |
2017 | 4 |