| Study | Q1 | Q2 | Q3 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | Q10 | Q11 | Q12 | Q13 | Q14 | Rating |
| Ducic et al. [14] (2008) | + | + | − | + | − | ? | + | ? | + | − | ? | ? | + | ? | Fair |
| Vuilleumier et al. [15] (2009) | + | + | − | + | + | + | + | ? | + | + | + | ? | + | ? | Good |
| Loos et al. [16] (2010) | + | + | − | + | + | + | + | ? | + | + | + | ? | + | ? | Good |
| Zacest et al. [17] (2010) | + | + | − | + | + | + | + | ? | + | + | + | ? | + | ? | Good |
| Karampinis et al. [18] (2017) | + | + | − | + | + | + | + | + | + | + | + | + | + | + | Good |
| Moreno-Egea et al. [19] (2016) | + | + | − | + | + | + | + | + | + | + | + | ? | + | + | Good |
| Gangopadhyay et al. [20] (2020) | + | + | − | + | + | + | + | + | + | + | + | ? | + | ? | Good |
| Moore et al. [21] (2016) | + | + | − | + | + | + | + | + | + | + | + | ? | + | ? | Good |
| Bjurström et al. [22] (2017) | + | + | − | + | + | + | + | + | + | + | + | ? | + | ? | Good |
| Chappel et al. [23] (2021) | + | + | − | + | + | + | + | ? | + | ? | + | ? | + | ? | Fair |
| +: Yes; −: No; ?: Unclear. | |||||||||||||||