Department of Internal Medicine, St. Elisabeth Hospital, P.O. Box 90151, 5000 LC, Tilburg, The Netherlands.
Support Care Cancer. 2012 Aug;20(8):1659-65. doi: 10.1007/s00520-011-1256-z. Epub 2011 Aug 24.
Recently, the Psychosocial Distress Questionnaire-Breast Cancer (PDQ-BC), a screening instrument specific for patients with early-stage breast cancer, was developed. The aim of this study was to further examine the psychometric properties of the PDQ-BC, in particular the subscales social support, sexual problems and financial problems.
Before patients received treatment (N = 123), they completed the PDQ-BC, the World Health Organization Quality of Life (WHOQOL-100) and the Center for Epidemiologic Studies Depression Scale (CES-D).
Floor effects were present in 44% of the subscales, whereas ceiling effects were only found in the social support subscale (11%). The PDQ-BC subscales social support, sexual problems and financial problems were highly correlated with the corresponding WHOQOL-100 facets social support, sexual activity and financial resources. Furthermore, the subscale depressive symptoms (PDQ-BC) was highly significantly correlated with the CES-D. Low correlations were found between the PDQ-BC subscales and questionnaires that were expected to be unrelated. Exceptions are the subscales trait anxiety and state anxiety, which had a high correlation with the CES-D. The Cronbach's alpha coefficients of the subscales trait anxiety, state anxiety, depressive symptoms, body image and physical problems ranged from 0.70 to 0.87. Social problems had a low consistency (0.39). Corrected item-total correlations confirmed the PDQ-BC structure.
The PDQ-BC has expected floor effects, few ceiling effects and sufficient internal consistency. Furthermore, the construct validity on the PDQ-BC subscales social support, sexual problems and financial problems was good. Thus, the PDQ-BC can be used to screen psychosocial problems in patients with early-stage breast cancer as part of routine care.
最近，开发了一种专门针对早期乳腺癌患者的心理困扰问卷-乳腺癌（PDQ-BC）筛查工具。本研究的目的是进一步研究 PDQ-BC 的心理测量特性，特别是社会支持、性问题和财务问题的子量表。
在患者接受治疗之前（N=123），他们完成了 PDQ-BC、世界卫生组织生活质量（WHOQOL-100）和流行病学研究中心抑郁量表（CES-D）。
44%的子量表存在地板效应，而只有社会支持子量表存在天花板效应（11%）。PDQ-BC 的社会支持、性问题和财务问题子量表与相应的 WHOQOL-100 方面的社会支持、性活动和财务资源高度相关。此外，PDQ-BC 的抑郁症状子量表（PDQ-BC）与 CES-D 高度显著相关。PDQ-BC 子量表与预计无关的问卷之间的相关性较低。例外的是特质焦虑和状态焦虑子量表，它们与 CES-D 高度相关。特质焦虑、状态焦虑、抑郁症状、身体形象和身体问题子量表的 Cronbach's alpha 系数范围为 0.70 至 0.87。社会问题的一致性较低（0.39）。校正后的项目总分相关性证实了 PDQ-BC 的结构。
PDQ-BC 具有预期的地板效应、较少的天花板效应和足够的内部一致性。此外，PDQ-BC 子量表社会支持、性问题和财务问题的结构效度良好。因此，PDQ-BC 可用于筛查早期乳腺癌患者的心理社会问题，作为常规护理的一部分。
