Sharif Nia Hamid, Pahlevan Sharif Saeed, Lehto Rebecca H, Boyle Christopher, Yaghoobzadeh Ameneh, Kaveh Omolhoda, Goudarzian Amir Hossein
Department of Medical-Surgical Nursing, School of Nursing and Midwifery Amol, Mazandaran University of Medical Sciences, Sari, Iran.
Department of Taylor's Business School, Taylor's University Malaysia, Subang Jaya, Malaysia.
Jpn J Clin Oncol. 2017 Aug 1;47(8):713-719. doi: 10.1093/jjco/hyx065.
The surfacing of thoughts and depressive affect associated with the prospect of death are prevalent among patients with advanced cancer. Because death cognitions and associated negative affect occur along an adaptive-less adaptive continuum, it is essential that valid and reliable instruments are available to measure death depression. The present study aimed to determine the psychometric properties of the Death Depression Scale among Iranian patients with advanced cancer.
About 497 cancer patients completed a Persian version of the 21-item Death Depression Scale-Revised. The face, content and construct validity of the scale were ascertained. Reliability was also assessed using internal consistency, construct reliability and intra-class correlation coefficient (ICC).
Construct validity determined one factor with an eigenvalue greater than 1. The model had a good fit (χ2 (179, N = 248) = 520.345, P < 0.001; χ2/df = 2.907, CFI = 0.916, TLI = 0.902, IFI = 0.917, SRMR = 0.049 and RMSEA = 0.088 (90% confidence interval = 0.079-0.097)) with all factors loadings greater than 0.5 and statistically significant. The internal consistency, construct reliability and ICC were greater than 0.70. Convergent validity of the scale was demonstrated.
Findings revealed that the Persian version of the Death Depression Scale-Revised is valid and reliable, and may be used to assess and evaluate death depression in Iranian patients with advanced cancer.
与死亡前景相关的想法和抑郁情绪在晚期癌症患者中普遍存在。由于死亡认知和相关的负面影响沿着适应性较差的连续体发生，因此必须有有效且可靠的工具来测量死亡抑郁。本研究旨在确定伊朗晚期癌症患者中死亡抑郁量表的心理测量特性。
约497名癌症患者完成了21项修订版死亡抑郁量表的波斯语版本。确定了该量表的表面效度、内容效度和结构效度。还使用内部一致性、结构可靠性和组内相关系数（ICC）评估了信度。
结构效度确定了一个特征值大于1的因子。该模型拟合良好（χ2（179，N = 248）= 520.345，P < 0.001；χ2/df = 2.907，CFI = 0.916，TLI = 0.902，IFI = 0.917，SRMR = 0.049，RMSEA = 0.088（90%置信区间 = 0.079 - 0.097）），所有因子载荷均大于0.5且具有统计学意义。内部一致性、结构可靠性和ICC均大于0.70。证明了该量表的收敛效度。
研究结果表明，修订版死亡抑郁量表的波斯语版本有效且可靠，可用于评估伊朗晚期癌症患者的死亡抑郁。
