Huang Qingmei, Jiang Ping, Zhang Zijun, Luo Jie, Dai Yun, Zheng Li, Wang Wei
Department of Urology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
Support Care Cancer. 2017 Dec;25(12):3683-3690. doi: 10.1007/s00520-017-3794-5. Epub 2017 Jun 22.
The Memorial Anxiety Scale for Prostate Cancer (MAX-PC) was developed to identify and assess cancer-specific anxiety among men with prostate cancer (PCa); however, there is no Chinese version. The aim of our study was to translate the English version of MAX-PC into Chinese and evaluate the psychometric properties of it.
The study cohort comprised 254 participants. Internal consistency including the Cronbach's alpha coefficient and item-total correlations were used to measure the reliability of the scale. Factor structure was analyzed by exploratory factor analysis and concurrent validity by comparing MAX-PC scores with anxiety subscale scores of the Hospital Anxiety and Depression Scale (HADS). Divergent validity was assessed by correlating MAX-PC with HADS depression subscale, while discriminant ability by comparing differences in MAX-PC scores between different patient groups.
The Chinese version of MAX-PC demonstrated good reliability; the Cronbach's alpha coefficient for the total and three subscales (prostate cancer anxiety, PSA anxiety, and fear of recurrence) being 0.94, 0.93, 0.82, and 0.85, respectively. Exploratory factor analysis supported the three-factor structure of the scale established in the original version. Despite the somewhat underperformed divergent validity, the scale demonstrated good concurrent validity with a strong correlation with the HADS anxiety subscale (r = 0.71, p < 0.01). Moreover, discriminant ability was demonstrated by ability to differentiate between disease stages.
The MAX-PC Chinese version was confirmed to be a valid, reliable instrument and is thus appropriate for identifying and quantifying cancer-specific anxiety in Chinese PCa patients.
纪念斯隆凯特琳前列腺癌焦虑量表（MAX-PC）旨在识别和评估前列腺癌（PCa）男性患者的癌症特异性焦虑；然而，目前尚无中文版。本研究旨在将MAX-PC英文版翻译成中文，并评估其心理测量学特性。
研究队列包括254名参与者。采用包括克朗巴哈α系数和项目与总分相关性在内的内部一致性来衡量量表的信度。通过探索性因素分析来分析因素结构，并通过将MAX-PC得分与医院焦虑抑郁量表（HADS）的焦虑子量表得分进行比较来评估同时效度。通过将MAX-PC与HADS抑郁子量表进行相关性分析来评估区分效度，同时通过比较不同患者组之间MAX-PC得分的差异来评估判别能力。
MAX-PC中文版显示出良好的信度；总量表及三个子量表（前列腺癌焦虑、PSA焦虑和复发恐惧）的克朗巴哈α系数分别为0.94、0.93、0.82和0.85。探索性因素分析支持了原版量表所确立的三因素结构。尽管区分效度表现欠佳，但该量表显示出良好的同时效度，与HADS焦虑子量表具有很强的相关性（r = 0.71，p < 0.01）。此外，该量表具有通过区分疾病阶段来体现的判别能力。
MAX-PC中文版被证实是一种有效、可靠的工具，因此适用于识别和量化中国PCa患者的癌症特异性焦虑。
