Table 4. Risk of bias of included reviews (ROBIS assessments).
| REVIEW | 1. Concerns regarding specification of STUDY ELEGIBILITY CRITERIA | 2. Concerns regarding methods used for the IDENTIFICATION AND SELECTION OF STUDIES | 3. Concerns regarding methods used in DATA COLLECTION AND STUDY APPRAISAL | 4. Concerns regarding methods used in SYNTHESIS AND FINDINGS | RISK OF BIAS IN THE REVIEW |
|---|---|---|---|---|---|
| Wirth 2019 | low | low | low | low | LOW |
| Picchiotino 2019 | low | low | low | low | LOW |
| Araujo 2018 | low | low | low | low | LOW |
| Chu 2014 | low | low | low | low | LOW |
| Navarro-Santana 2019 | unclear | low | low | unclear | UNCLEAR |
| Hegedus 2011 | unclear | low | low | unclear | UNCLEAR |
| Rechberger 2019 | low | unclear | unclear | unclear | UNCLEAR |
| Galindez 2017 | low | unclear | unclear | unclear | UNCLEAR |
| Kinsgton 2014 | low | unclear | low | high | UNCLEAR |
| Amoroso Borges 2018 | low | unclear | unclear | high | UNCLEAR |
| Schimid 2008 | low | low | low | high | UNCLEAR |
| Lascurain 2016 | unclear | unclear | low | high | HIGH |