Table 2 Number of RCTs registered over the 5-year study period
From: Registration of randomized controlled trials in nursing journals
Year | Date | Total number of included trials | Number of trials not registered (n, %) |
|---|---|---|---|
1 | 1 September 2011 to 31 August 2012 | 32 | 22 (69%) |
2 | 1 September 2012 to 31 August 2013 | 22 | 11 (50%) |
3 | 1 September 2013 to 31 August 2014 | 28 | 17 (61%) |
4 | 1 September 2014 to 31 August 2015 | 34 | 17 (50%) |
5 | 1 September 2015 to 31 August 2016 | 19 | 11 (58%) |