Characteristics | No. (%) |
---|---|
Location | |
 USA | 35 (41%) |
 Europe | 27 (32%) |
 Australia | 7 (8%) |
 Canada | 7 (8%) |
 Others | 9 (11%) |
Publication year | |
  < 2000 | 21 (25%) |
 2000–2004 | 18 (21%) |
 2005–2009 | 17 (20%) |
  ≥ 2010 | 29 (34%) |
Health disciplines | |
 Medical | 63 (74%) |
 Nursing | 8 (9%) |
 Allied health professions | 14 (17%) |
Training level | |
 Undergraduate | 32 (38%) |
 Postgraduate | 51 (60%) |
 Both | 2 (2%) |
Study design | |
 Randomised controlled trials | 46 (54%) |
 Non-randomised controlled trials | 39 (46%) |