Table 3.
Quality assessment of included studies.
|
Q1 | Q2 | Q3 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | Q10 | Q11 | Q12 | Q13 | Q14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Klamroth et al. (2016) | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | ? | 1 | 0 | 1 | 1 |
| Shen and Mak (2015) | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | ? | 1 | 1 | ? | 0 |
| Cakit et al. (2007) | 1 | ? | ? | ? | 1 | 1 | 0 | 0 | 1 | ? | 1 | 0 | ? | 0 |
| Gimmon et al. (2018) | 1 | 1 | ? | ? | ? | 0 | 0 | 1 | ? | ? | 1 | 1 | 1 | ? |
| Steib et al. (2017) | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 0 |
| Rieger et al. (2020) | 1 | ? | ? | ? | ? | 1 | 1 | 1 | ? | ? | 1 | 0 | ? | 1 |
| Harro et al. (2014a) | 1 | ? | ? | 0 | 1 | 1 | 1 | 1 | 1 | ? | 1 | 1 | ? | 1 |
| Martelli et al. (2017) | ? | ? | 1 | 1 | ? | 1 | 0 | ? | 1 | |||||
| Sum score | 7/7 | 4/7 | 3/7 | 0/8 | 4/8 | 7/8 | 3/7 | 6/7 | 6/8 | 1/8 | 8/8 | 3/8 | 3/8 | 4/8 |
Green color: low risk of bias, Red color: high risk of bias, Orange color: not reported, Dark gray color: not applicable. Q1: RCT, no/RCT, Q2: randomization quality, Q3: concealed allocation, Q4: participant blinding, Q5: blinded testers, Q6: similar groups, Q7: drop-out <20%, Q8: differential drop-out rate <15%, Q9: adherence >75%, Q10: similar background treatments, Q11: valid outcome measures, Q12: power >80%, Q13: preregistration, Q14: intention-to-treat.