| Characteristic | Number | |
|---|---|---|
| Searches | Purposive | |
| Year published | ||
| pre- 2000 | 0 | 1 |
| 2000–2005 | 4 | 4 |
| 2006 | 2 | 0 |
| 2007 | 3 | 0 |
| 2008 | 1 | 1 |
| 2009 | 5 | 1 |
| 2010 | 9 | 3 |
| 2011 | 9 | 3 |
| 2012 | 9 | 2 |
| 2013 | 6 | 1 |
| 2014 | 16 | 1 |
| 2015 | 18 | 0 |
| 2016 | 3 | 1 |
| TOTAL | 85 | 18 |
| Article type | ||
| Conceptual and opinion/commentary | 18 | 5 |
| Primary Research: | ||
| Qualitative | 47 | 2 |
| Quantitative | 4 | 1 |
| Mixed methods | 4 | 1 |
| Reviews | 9 | 5 |
| Description of program | 3 | 0 |
| Grey literature | 0 | 4 |
| TOTAL | 85 | 18 |