| CONSORT 2010 | Updated guidelines for reporting parallel group randomised trials |
| NRS | Numerical Rating Scale |
| STAI | The State-Trait Anxiety Inventory for adolescents |
| STAI-C | The State-Trait Anxiety Inventory for children between 9 and 14 years of age |
| CONSORT 2010 | Updated guidelines for reporting parallel group randomised trials |
| NRS | Numerical Rating Scale |
| STAI | The State-Trait Anxiety Inventory for adolescents |
| STAI-C | The State-Trait Anxiety Inventory for children between 9 and 14 years of age |