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The Pediatric Outcomes Data Collection Instrument for a Polish sample with juvenile idiopathic arthritis: psychometric properties of proxy version
Author(s) -
Misterska Ewa,
Adamczak Karolina,
KaminiarczykPyzałka Dominika,
Adamczyk Katarzyna,
Głowacki Jakub,
Niedziela Marek,
Glowacki Maciej
Publication year - 2017
Publication title -
international journal of rheumatic diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 41
eISSN - 1756-185X
pISSN - 1756-1841
DOI - 10.1111/1756-185x.12738
Subject(s) - cronbach's alpha , medicine , intraclass correlation , physical therapy , psychometrics , clinical psychology
Aim The aims of the study were to investigate the psychometric properties of the Pediatric Outcomes Data Collection Instrument ( PODCI ) for parents of children aged 2–10 years, in a Polish sample of juvenile idiopathic arthritis and to compare the results from children with chronic arthritis to the results from a normative sample. Methods The sample consisted of the parents of 29 (72.5%) girls and 11 (27.5%) boys. The ages of the children ranged from 2 to 10 years (mean 6.50, standard deviation [ SD ] 2.63). Disease course was classified as oligoarticular ( n = 26, 65%) and polyarticular ( n = 14, 35%). Parents who took part in the intrarater reliability study completed the Polish version of PODCI twice. The PODCI consists of the following subscales: Upper Extremity and Physical Function, Transfer and Mobility Tasks, Sports/Physical Functioning, Pain/Comfort, and Happiness. A Global Functioning Scale consists of the mean of the ‘mean of items’ values for the first four scales. Results The mean standarized Global Functioning Scale was 81.79 ( SD 13.45), whereas the mean normative Global Functioning Scale score equaled 33.65 ( SD 18.19). Cronbach's alpha value of the Global Functioning Scale was excellent and equaled 0.81. The effect size concerning the Global Functioning Scale equaled 0.123. Test–retest reliability equaled 0.98, whereas intrarater reliability (intraclass correlation coefficient) equaled 0.99. Conclusions The translation and cross‐cultural adaptation of the PODCI questionnaire provides a Polish equivalent to assess physical function in children with chronic arthritis.