School of Public Health and Health Systems, Faculty of Applied Health Sciences, University of Waterloo, 200 University Ave, West, Waterloo, Ontario, Canada, N2L 3G1.
Support Care Cancer. 2014 Apr;22(4):1071-9. doi: 10.1007/s00520-013-2061-7. Epub 2013 Nov 29.
The Survivor Unmet Needs Survey (SUNS) is one of the only unmet needs measures that was developed and evaluated utilising a population-based sample of cancer survivors. At 89 items, the current scale is quite burdensome. The current study aimed to develop a valid and reliable short version of this survey.
A heterogeneous sample of 1,589 cancer survivors, aged 19 years or over at diagnosis, diagnosed with a histologically confirmed cancer in the previous 12 to 60 months, completed the SUNS. Using these data, we employed a combined theoretical and statistical method of reducing the number of items in the SUNS. The shortened survey was examined for construct validity, internal consistency, discriminant validity and floor and ceiling effects.
Fifty-nine items were removed. Construct validity closely reflected the original structure of the SUNS. However, all items from the Emotional health and Relationships domains loaded onto one factor. Cronbach's alpha for the final four domains were 0.85 or above, demonstrating strong internal consistency. Intra-class correlations of the three domains from the original survey (Financial concerns, Information and Access and continuity of care) and shortened survey were high (>0.9). Discriminant validity illustrated the short-form SUNS' ability to discriminate between those who had recently received treatment and those who had not.
This study describes the development and psychometric evaluation of the short-form SUNS (SF-SUNS). Future studies should confirm the test-retest reliability and predictive validity of the SF-SUNS utilising large, independent, population-based samples of cancer survivors.
幸存者未满足需求调查（SUNS）是唯一一种使用基于人群的癌症幸存者样本开发和评估的未满足需求测量方法之一。目前的量表有 89 个项目，相当繁琐。本研究旨在开发该调查的有效且可靠的简短版本。
一个由 1589 名年龄在 19 岁及以上、在过去 12 至 60 个月内被诊断患有组织学确诊癌症的癌症幸存者组成的异质样本完成了 SUNS。使用这些数据，我们采用了一种理论和统计相结合的方法来减少 SUNS 中的项目数量。对缩短后的调查进行了结构有效性、内部一致性、判别有效性以及地板和天花板效应的检验。
删除了 59 个项目。结构有效性与 SUNS 的原始结构密切相关。然而，情感健康和人际关系领域的所有项目都加载到一个因素上。最后四个领域的 Cronbach's alpha 为 0.85 或更高，表明具有很强的内部一致性。来自原始调查的三个领域（财务问题、信息和获取以及连续性护理）和缩短后的调查的内部一致性均较高（>0.9）。判别有效性表明短式 SUNS 能够区分最近接受治疗和未接受治疗的患者。
本研究描述了短式 SUNS（SF-SUNS）的开发和心理测量评估。未来的研究应利用大型独立的癌症幸存者人群样本，确认 SF-SUNS 的重测信度和预测有效性。
