Table 3: Critical appraisal of eligible studies21–26.
| Author | Design | Selection | Comparability | Outcome | |
|---|---|---|---|---|---|
| Lim et al.24 | Cross-sectional study | *** | * | *** | |
| Haam et al.23 | Cross-sectional study | ** | * | *** | |
| Goss and Gower22 | Cross-sectional study | **** | * | *** | |
| Bang et al.21 | Cross-sectional study | **** | * | *** | |
| Validity | Importance | Applicability | |||
| Yaskolka Meir et al.25 | RCT | (+) | (+) | (+) | |
| Waters et al.26 | RCT | (+) | (+) | (+) | |
-= not fulfilled the criteria; + = positive and fulfilled the criteria; * = one point; RCT = randomized controlled trial.