Neale Joanne, Vitoratou Silia, Finch Emily, Lennon Paul, Mitcheson Luke, Panebianco Daria, Rose Diana, Strang John, Wykes Til, Marsden John
National Addiction Centre, 4 Windsor Walk, Institute of Psychiatry, Psychology & Neuroscience, King's College London, Denmark Hill, London, SE5 8AF, UK.
Department of Biostatistics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, SE5 8AF, UK.
Drug Alcohol Depend. 2016 Aug 1;165:159-67. doi: 10.1016/j.drugalcdep.2016.06.006. Epub 2016 Jun 15.
Patient Reported Outcome Measures (PROMs) assess health status and health-related quality of life from the patient/service user perspective. Our study aimed to: i. develop a PROM for recovery from drug and alcohol dependence that has good face and content validity, acceptability and usability for people in recovery; ii. evaluate the psychometric properties and factorial structure of the new PROM ('SURE').
Item development included Delphi groups, focus groups, and service user feedback on draft versions of the new measure. A 30-item beta version was completed by 575 service users (461 in person [IP] and 114 online [OL]). Analyses comprised rating scale evaluation, assessment of psychometric properties, factorial structure, and differential item functioning.
The beta measure had good face and content validity. Nine items were removed due to low stability, low factor loading, low construct validity or high complexity. The remaining 21 items were re-scaled (Rasch model analyses). Exploratory and confirmatory factor analyses revealed 5 factors: substance use, material resources, outlook on life, self-care, and relationships. The MIMIC model indicated 95% metric invariance across the IP and OL samples, and 100% metric invariance for gender. Internal consistency and test-retest reliability were granted. The 5 factors correlated positively with the corresponding WHOQOL-BREF and ARC subscales and score differences between participant sub-groups confirmed discriminative validity.
'SURE' is a psychometrically valid, quick and easy-to-complete outcome measure, developed with unprecedented input from people in recovery. It can be used alongside, or instead of, existing outcome tools.
患者报告结局量表（PROMs）从患者/服务使用者的角度评估健康状况和与健康相关的生活质量。我们的研究旨在：i. 开发一种用于药物和酒精依赖康复的PROM，该量表对康复者具有良好的表面效度和内容效度、可接受性和可用性；ii. 评估新的PROM（“SURE”）的心理测量特性和因子结构。
条目开发包括德尔菲小组、焦点小组以及服务使用者对新量表草稿版本的反馈。575名服务使用者（461名亲自填写[IP]和114名在线填写[OL]）完成了一个包含30个条目的beta版本。分析包括评定量表评估、心理测量特性评估、因子结构评估以及项目功能差异分析。
beta量表具有良好的表面效度和内容效度。由于稳定性低、因子载荷低、结构效度低或复杂性高，9个条目被删除。其余21个条目进行了重新计分（拉施模型分析）。探索性和验证性因子分析揭示了5个因子：物质使用、物质资源、生活态度、自我护理和人际关系。MIMIC模型表明，IP样本和OL样本之间95%的度量不变性，以及性别之间100%的度量不变性。内部一致性和重测信度得到了保证。这5个因子与相应的WHOQOL-BREF和ARC子量表呈正相关，参与者亚组之间的得分差异证实了区分效度。
“SURE”是一种心理测量有效的、快速且易于完成的结局量表，是在康复者前所未有的参与下开发的。它可以与现有结局工具一起使用，或者替代现有结局工具。
