Summary of quality of evidence as per GRADE criteria
| Study | Quality of evidence |
|---|---|
| Braude et al., 2017 (12) | Low |
| Koebrugge et al., 2010 (13) | Very low |
| Bakker et al., 2014 (14) | Very low |
| Engelhardt et al., 2018 (15) | Low |
| Mudge et al., 2020 (16) | Low |
| Khadaroo et al., 2020 (17) | Low |
GRADE = Grading of Recommendations, Assessment, Development and Evaluation.