厄瓜多尔的 Fitzpatrick 皮肤光型分类的有效性。
Validity of the Fitzpatrick Skin Phototype Classification in Ecuador.
机构信息
At the Universidad de Las Américas, in Quito, Pichincha, Ecuador, Martha Maria Fors Lopez, PhD, MD, MSc, is Researcher and Professor, and Paloma de las Mercedes González Fors, BS, is Librarian. Carmen Elena Viada González, MSc, is Statistician, Center of Molecular Immunology, Havana, Cuba. Kirsten Falcon, MSN, RN, is Professor of Nursing, Universidad de Las Américas. Santiago Palacios-Alvarez, MD, is Professor, Pontifical Catholic University of Ecuador, Quito. Acknowledgment: The authors thank the study participants, the Centro de la Piel for its valuable contribution, and the Universidad de Las Américas for funding travel and study materials and equipment (grant no. MED.MF.17.08). The authors have disclosed no other financial relationships related to this article. Submitted April 3, 2020; accepted in revised form May 6, 2020.
出版信息
Adv Skin Wound Care. 2020 Dec;33(12):1-5. doi: 10.1097/01.ASW.0000721168.40561.a3.
BACKGROUND
The Fitzpatrick Skin Phototype Classification (FSPC) is the most common tool used to assess skin phototype in White populations according to the amount of pigment the skin has and its reaction to sun exposure. Scientific evidence about the use of this scale for persons with darker skin is limited.
OBJECTIVE
To assess the internal consistency, reliability, and construct validity of the FSPC for Ecuadorians.
METHODS
This observational cross-sectional study recruited participants of both sexes between 40 and 90 years of age living in a rural area of Quito, Ecuador. Cronbach α values were used to assess the internal consistency of the scale. Construct validity was assessed with confirmatory factor analysis.
RESULTS
The internal consistency coefficients indicated that the reliability of the responses to the scale was fair. Total α value was .515, whereas the α values of the two factors were .42 and .67. Most item-to-factor correlations had a low to moderate magnitude, ranging from r = 0.30 to 0.37. Confirmatory factor analysis supported a two-factor solution and achieved good overall fit as indicated by root mean square error of approximation = 0.08, and nonnormed fit index = 0.88 was mediocre. Goodness-of-fit χ = 177.10, P < .001. The factor loads were greater than 0.30, ranging from 0.30 to 0.99.
CONCLUSIONS
The FSPC showed an acceptable construct validity and a fair internal consistency. The five-item scale could potentially be used as an effective instrument for assessing skin phototype in non-White people.
背景
根据皮肤的色素含量及其对阳光暴露的反应，Fitzpatrick 皮肤光型分类（FSPC）是评估白种人皮肤光型最常用的工具。关于该量表在肤色较深人群中的应用，科学证据有限。
目的
评估 FSPC 在厄瓜多尔人群中的内部一致性、可靠性和结构效度。
方法
本观察性横断面研究招募了居住在厄瓜多尔基多农村地区的 40 至 90 岁的男女参与者。采用 Cronbach α 值评估量表的内部一致性。采用验证性因子分析评估结构效度。
结果
内部一致性系数表明，对量表的反应可靠性为中等。总 α 值为.515，而两个因子的 α 值分别为.42 和.67。大多数项目与因子的相关性具有低到中等的强度，范围从 r = 0.30 到 0.37。验证性因子分析支持两因素解决方案，并表现出良好的整体拟合度，近似均方根误差为 0.08，非标准化拟合指数为 0.88 为中等。拟合优度 χ = 177.10，P <.001。因子负荷大于 0.30，范围从 0.30 到 0.99。
结论
FSPC 显示出可接受的结构效度和中等的内部一致性。五分量表可能可作为评估非白种人皮肤光型的有效工具。
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