Reference, Evidence Typea, and Gradeb | Article Type/ Population | Response Option Type | Conclusions |
---|---|---|---|
Lakkis et al. 2006 [19], Direct, C | Intervention Study; Children aged 10 to 15Â years old | VRS | There were no difficulties with the completion of the questionnaires, suggesting that 5-point VRS can be administered effectively to children and adolescents aged 10 to 15Â years. Study participants were able to discriminate between and respond to questions easily using the 5-point scale. |
Takahashi & Yamamoto. 2006 [18], Direct, A | Prospective Study; Children aged 11 to 18Â years old | Faces scales; NRS; VAS | In children 11 to 18Â years, NRS produced higher scores than Faces or VAS but NRS and VAS had higher correspondence than with Faces. |
Bennett et al. 2010 [20], Direct, C | Instrument Development and/or Validation study; Children aged 12Â years and older | VRS | Two methods for measuring the 7-day symptom experience of patients 12Â years and older with cystic fibrosis, in which the two methods (a single 7-day recall and repeated 24-h recall) were found to provide similar results for groups of patients using a 5-point VRS. |