Department of Dermatology, Hospital Costa del Sol, Marbella, Spain; Spanish Research Network on Health Care in Chronic Diseases (REDISSEC), Spain.
Br J Dermatol. 2015 Jan;172(1):160-8. doi: 10.1111/bjd.13173. Epub 2014 Dec 25.
The Skin Cancer Index (SCI) is the first specific patient-reported outcome measure for patients with cervicofacial nonmelanoma skin cancer. To date, only the original English version has been published.
To develop a Spanish version of the SCI that is semantically and linguistically equivalent to the original, and to evaluate its measurement properties in this different cultural environment.
A cross-sectional study was conducted of the cultural adaptation and empirical validation of the questionnaire, analysing the psychometric properties of the new index at different stages.
Of 440 patients recruited to the study, 431 (95%) completed the Spanish version of the SCI questionnaire, in a mean time of 6·3 min (SD 2·9). Factor analysis of the scale revealed commonality and loading values of < 0·5 for three of the 15 items. The remaining 12 items converged into two components: appearance/social aspects (seven items) and emotional aspects (five items). Both domains presented a high level of internal consistency, with Cronbach's alpha values above 0·8. The convergent-discriminant validity analysis produced correlations higher than 0·3 for the mental component of the Short Form Health Survey-12v2 Health Questionnaire (correlation coefficient 0·39) and the Dermatology Quality of Life Index (correlation coefficient -0·30). In the test-retest, nine of the 12 items produced a weighted kappa value exceeding 0·4, and for the remaining three items, the absolute agreement percentage exceeded 60%.
The Spanish version of the SCI quality of life scale has been satisfactorily adapted and validated for use in Spanish-speaking countries and populations.
皮肤癌指数（SCI）是首个针对头颈部非黑素瘤皮肤癌患者的特定患者报告结局测量工具。迄今为止，仅发表了原始的英文版本。
开发 SCI 的西班牙语版本，使其在语义和语言上与原始版本等效，并在这种不同的文化环境中评估其测量特性。
进行了问卷的文化适应性和实证验证的横断面研究，分析了新指数在不同阶段的心理测量特性。
在纳入的 440 名患者中，431 名（95%）完成了 SCI 问卷的西班牙语版本，平均用时 6.3 分钟（SD 2.9）。对量表进行因子分析显示，15 个项目中有 3 个的共性和负荷值<0.5。其余 12 个项目汇聚成两个部分：外观/社会方面（7 个项目）和情绪方面（5 个项目）。两个领域均具有较高的内部一致性，Cronbach's alpha 值均高于 0.8。收敛判别有效性分析得出，与 Short Form Health Survey-12v2 Health Questionnaire 的心理健康成分（相关系数 0.39）和皮肤病生活质量指数（相关系数-0.30）的相关性高于 0.3。在测试-重测中，12 个项目中的 9 个产生的加权 kappa 值超过 0.4，对于其余 3 个项目，绝对一致百分比超过 60%。
SCI 生活质量量表的西班牙语版本已被满意地改编和验证，可用于西班牙语国家和人群。
