BACKGROUND The Cancer Survivors' Unmet Needs (CaSUN) measure is an assessment tool developed specifically for this population but several issues about its structural properties still remain unresolved. METHOD The present study tests the theoretical model, the original authors' empirical solution, and a new rational proposal of the CaSUN using Confirmatory Factor Analysis. Reliability and convergent validity are also analysed. 566 Spanish breast cancer survivors completed the CaSUN, the Brief Symptom Inventory-18 (BSI-18) and the Quality of Life in Adult Cancer Survivors questionnaire (QLACS). RESULTS The proposed model of five domains (physical effects, psychological effects, comprehensive care and information, practical issues, and relationships) plus a total score provided better fit than the authors' theoretical proposal and some advantages over their empirical proposal. Internal consistency (α = .73 - .95; r item-total > .30) and test-retest reliability (r = .74 - 89) were adequate. The CaSUN correlated with high emotional distress (r = .43 - .77) and poor quality of life (r = .18 - .64). CONCLUSIONS The CaSUN-S is an effective and complete instrument that can help health professionals to collect data about the impact of the disease beyond the diagnosis and treatment phase that is important for patient care.

中文翻译：

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西班牙语版本的癌症幸存者未满足需求 (CaSUN-S) 测量乳腺癌的心理测量特性。

背景癌症幸存者的未满足需求 (CaSUN) 测量是专门为该人群开发的评估工具，但有关其结构特性的几个问题仍未解决。方法 本研究使用验证性因子分析测试理论模型、原作者的经验解决方案和 CaSUN 的新合理建议。还分析了信度和收敛效度。566 名西班牙乳腺癌幸存者完成了 CaSUN、简要症状量表-18 (BSI-18) 和成人癌症幸存者生活质量问卷 (QLACS)。结果 提出的五个领域（身体影响、心理影响、综合护理和信息、实际问题和关系）的模型加上总分提供了比作者更好的拟合 理论建议和一些优于他们的经验建议的优势。内部一致性（α = .73 - .95；r 项目总数 > .30）和重测信度（r = .74 - 89）是足够的。CaSUN 与高情绪困扰 (r = .43 - .77) 和生活质量差 (r = .18 - .64) 相关。结论 CaSUN-S 是一种有效且完整的工具，可以帮助卫生专业人员在诊断和治疗阶段之外收集有关疾病影响的数据，这对患者护理很重要。