Ten-point, methodological assessment scale of studies
| Author (year) | Training sample | Evaluation of intervention | Total score | |||||||||
| Number of trainees >30? | Training cohort sufficient detail representative of target training population? | Sufficient detail given for selection of training sample? | A control cohort? | Random assignment to a cohort? | Selection of evaluation sample clearly described? | A preintervention assessment of outcome measures done? | Is evaluation fully reported and representative of training sample? | Is there masked evaluation | Long-term postevaluation (≥1 month) of outcomes? | |||
| 1 | Abas et al (2016) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 2 | Abayomi (2012) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 5 |
| 3 | Adebowale et al (2015) | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 5 |
| 4 | Alonso et al (2014) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 5 | Armstrong et al (2010) | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 |
| 6 | Armstrong et al (2011) | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 6 |
| 7 | Bowers et al (2009) | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 3 |
| 8 | Chew-Graham et al (2014) | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3 |
| 9 | Chibanda et al (2016) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 10 |
| 10 | Church et al (2010) | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 4 |
| 11 | Cook (2017) | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 5 |
| 12 | Ekers et al (2013) | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 3 |
| 13 | Ferraz et al (2009) | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 5 |
| 14 | Hofmann-Braussard (2017) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 9 |
| 15 | Hossain et al (2010) | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 4 |
| 16 | Jenkins et al (2013) | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 9 |
| 17 | Jordans et al (2012) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 7 |
| 18 | Kauye et al (2014) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 |
| 19 | Lam et al (2016) | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 4 |
| 20 | Li et al (2014) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 6 |
| 21 | MacCarthy et al (2013) | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 5 |
| 22 | Morawska et al (2012) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 7 |
| 23 | Paudel et al (2014) | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
| 24 | Ravitz et al (2013) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 6 |
| 25 | Ruud et al (2016) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 26 | Sadik et al (2011) | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 7 |
| 27 | Siriwardhana et al (2016) | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 4 |
| 28 | Usher et al (2015) | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 4 |
| 29 | Wright et al (2014) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 7 |
| TOTAL | 22 | 17 | 17 | 6 | 5 | 26 | 19 | 19 | 6 | 13 | 150 | |