本研究旨在调查希腊版本FACIT-COST的心理测量特性，并评估患有肺癌的患者的财务困扰水平与其生活质量和肺癌症状负担之间的关系。本研究采用横断面定量研究设计，使用自评工具收集数据。研究对象为在雅典一家综合医院日间门诊接受化疗的120例肺癌患者。数据采用COST-FACIT-v2（用于评估患者的财务毒性）、12项健康调查（SF-12）和癌症疗法功能评估-肺癌症状指数问卷-7项-第4版（FACIT-FACT-LCS）进行收集。所有统计分析均使用IBM SPSS统计软件25版本完成，采用统计学中的描述性统计和探索性因子分析方法，p值显著性水平为0.05。大多数参与者为男性（68.3%），已婚或同居者（81.3%），诊断为微细胞癌（90%）。因子分析结果显示一个因子解释了总方差的35%。如预期，FACT-L（r=0.365，p<0.001）、SF-12身体健康分量表（r=0.184，p=0.045）和SF-12心理健康分量表（r=0.268，p=0.003）与FACIT-OST呈正相关。经过希腊版COST-FACIT-v2的验证，发现该工具可可靠地快速评估癌症患者的财务困扰水平。 © 2023. 作者，由Springer Nature Switzerland AG独家授权使用。

The aim of this study was to investigate the psychometric properties of the Greek version of FACIT-COST, as well as to assess the levels of financial distress of patients suffering from lung cancer in relation to their quality of life and lung cancer symptom burden. This was a cross-sectional quantitative study. A self-assessment instrument was used to gather the data. The study involved 120 lung cancer patients who were treated using chemotherapy in a day clinic of a General Hospital in Athens. Data were collected with the COST-FACIT-v2 (used to assess the patients' financial toxicity), The 12-item Health Survey (SF-12), and functional Assessment of Cancer Therapy-Lung Symptom Index Questionnaire-7 items-version 4 (FACIT-FACT-LCS). Descriptive statistics as well as exploratory factor analysis performed all the statistical analyses, which were conducted using IBM SPSS Statistics 25 and had p-values with a significance level of 0.05. The majority of the participants were male (68.3%), married or cohabitated (81.3%), and had been diagnosed with microcell cancer (90%). The factor analysis resulted in one factor that interpreted 35% of the total variance. FACT-L (r = 0.365, p < 0.001), physical component SF-12 (r = 0.184, p = 0.045), and mental health component SF-12 (r = 0.268, p = 0.003) were positively correlated to FACIT-OST, as expected. The Greek validated COST-FACIT-v2 is a reliable tool in providing rapid assessment of cancer patients' level of financial distress.© 2023. The Author(s), under exclusive license to Springer Nature Switzerland AG.