PMID- 20551105 OWN - NLM STAT- MEDLINE DCOM- 20101122 LR - 20191210 IS - 1499-2752 (Electronic) IS - 0315-162X (Linking) VI - 37 IP - 7 DP - 2010 Jul TI - Evaluation of 21-numbered circle and 10-centimeter horizontal line visual analog scales for physician and parent subjective ratings in juvenile idiopathic arthritis. PG - 1534-41 LID - 10.3899/jrheum.091474 [doi] AB - OBJECTIVE: To evaluate the measurement properties of 21-numbered circle visual analog scales (VAS) and traditional 10-cm horizontal line VAS for physician and parent subjective ratings in children with juvenile idiopathic arthritis (JIA). METHODS: We studied 2 patient samples in whom physician global rating of overall disease activity, parent global rating of the child's overall well-being, and parent rating of intensity of child's pain were performed using traditional 10-cm horizontal line VAS (n = 397) or 21-numbered circle VAS (n = 471). The measurement performances of the 2 VAS formats were examined by assessing construct validity, score distribution, responsiveness to change over time, and minimal clinically important difference (MCID). RESULTS: Most Spearman correlations with other JIA outcome measures yielded by 21-numbered circle VAS were greater than those obtained with 10-cm horizontal line VAS, revealing that the circle VAS format has better construct validity. Ceiling effects (i.e., score = 0) for physician and parent global ratings were 43.7% and 32.9%, respectively, on 21-numbered circle VAS, and 31.6% and 35.3%, respectively, on 10-cm horizontal line VAS. Responsiveness of 21-numbered circle VAS was good (standardized response mean > 0.8) or moderate (standardized response mean > 0.6) among patients classified as improved or worsened, respectively, by the physician or the parent. Overall, MCID values for 21-numbered circle VAS tended to be greater for worsening than for improvement. CONCLUSION: The 21-numbered circle VAS are a suitable alternative to the 10-cm horizontal line VAS and may facilitate incorporation of physician and parent subjective ratings in standard clinical practice. FAU - Filocamo, Giovanni AU - Filocamo G AD - Istituto di Ricovero e Cura a Carattere Scientifico G. Gaslini, Genova, Italy. FAU - Davi, Sergio AU - Davi S FAU - Pistorio, Angela AU - Pistorio A FAU - Bertamino, Marta AU - Bertamino M FAU - Ruperto, Nicolino AU - Ruperto N FAU - Lattanzi, Bianca AU - Lattanzi B FAU - Consolaro, Alessandro AU - Consolaro A FAU - Magni-Manzoni, Silvia AU - Magni-Manzoni S FAU - Galasso, Roberta AU - Galasso R FAU - Varnier, Giulia Camilla AU - Varnier GC FAU - Martini, Alberto AU - Martini A FAU - Ravelli, Angelo AU - Ravelli A LA - eng PT - Evaluation Study PT - Journal Article DEP - 20100615 PL - Canada TA - J Rheumatol JT - The Journal of rheumatology JID - 7501984 SB - IM MH - Arthritis, Juvenile/*physiopathology MH - Humans MH - Pain/physiopathology MH - *Pain Measurement MH - Parents/*psychology MH - Patients MH - Physicians/*psychology MH - Reproducibility of Results MH - Severity of Illness Index MH - Surveys and Questionnaires EDAT- 2010/06/17 06:00 MHDA- 2010/12/14 06:00 CRDT- 2010/06/17 06:00 PHST- 2010/06/17 06:00 [entrez] PHST- 2010/06/17 06:00 [pubmed] PHST- 2010/12/14 06:00 [medline] AID - jrheum.091474 [pii] AID - 10.3899/jrheum.091474 [doi] PST - ppublish SO - J Rheumatol. 2010 Jul;37(7):1534-41. doi: 10.3899/jrheum.091474. Epub 2010 Jun 15.