Toupin April Karine, Higgins Johanne, Ehrmann Feldman Debbie
Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Road, room R1132, Ottawa, Ontario, Canada.
Department of Pediatrics, University of Ottawa, Ontario, Canada.
Pediatr Rheumatol Online J. 2016 Jul 28;14(1):45. doi: 10.1186/s12969-016-0105-5.
Adherence to treatment in children with juvenile idiopathic arthritis (JIA) is associated with better outcomes. Assessing patient adherence in JIA, as well as attitudes and beliefs about prescribed treatments, is important for the clinician in order to optimize patient management. The objective of the current study was to evaluate the psychometric properties of the Parent (proxy-report) Adherence Report Questionnaires (PARQ), which assesses beliefs and behaviors related to adherence to treatments prescribed for JIA.
A Rasch analysis was conducted on data collected with parents of children with JIA from two studies in which the PARQ was used as a measure of adherence.
The PARQ showed preliminary evidence of multidimensionality with two factors, accounting for 38 % and 27 % of the variance respectively. The PARQ in its original version does not adhere to expectations of the Rasch model. A transformed version of the PARQ obtained by deletion of the general adherence scale and modification of visual analog scales into 5-point likert scales improved fit to the model and showed preliminary evidence of unidimensionality.
The PARQ was transformed based on the results of the Rasch analysis. The transformed version of the PARQ shows preliminary evidence of unidimensionality and may allow computation of a total score, although further testing is needed to verify these findings.
幼年特发性关节炎（JIA）患儿坚持治疗与更好的预后相关。评估JIA患者的治疗依从性以及对规定治疗的态度和信念，对临床医生优化患者管理很重要。本研究的目的是评估家长（代理报告）依从性报告问卷（PARQ）的心理测量特性，该问卷评估与JIA规定治疗依从性相关的信念和行为。
对两项研究中收集的JIA患儿家长的数据进行拉施分析，其中PARQ用作依从性的衡量指标。
PARQ显示出初步的多维度证据，有两个因素，分别占方差的38%和27%。PARQ的原始版本不符合拉施模型的预期。通过删除一般依从性量表并将视觉模拟量表修改为5点李克特量表获得的PARQ转换版本改善了对模型的拟合，并显示出初步的单维度证据。
根据拉施分析结果对PARQ进行了转换。PARQ的转换版本显示出初步的单维度证据，可能允许计算总分，尽管需要进一步测试来验证这些发现。
