Aix Marseille Univ, APHM, IUSTI, Department of Oto-Rhino-Laryngology and Head and Neck Surgery, La Conception University Hospital, Marseille, France.
Department of Public Health (BIOSTIC), Aix-Marseille Univ, INSERM, IRD, APHM, UMR1252, SESSTIM, Aix-Marseille University, Hôpital de la Timone, Marseille, France.
Qual Life Res. 2021 Apr;30(4):1225-1231. doi: 10.1007/s11136-020-02719-8. Epub 2021 Jan 3.
Most questionnaires designed to evaluate patient-reported outcomes regarding scarring are available in English. The objective was to generate a validated French version of the SCAR-Q questionnaire.
The SCAR-Q questionnaire (including Appearance, Symptom and Psychological impact scales) was translated into French using a translation-back-translation process in accordance with international guidelines (ISPOR and WHO). For validation, two hundred patients consulting in our tertiary center completed the questionnaire. We tested scale reliability (Cronbach's α), floor/ceiling effects and item redundancy (inter-item correlations). Structural validity was tested using confirmatory factor analysis (CFA) with the robust weighted least squares (WLSMV) estimator and Delta parameterization. Model fit was examined using the root mean square error of approximation (RMSEA), the comparative fit index (CFI) and the Tucker-Lewis index (TLI). Correlations between scales and scale repeatability were tested (Spearman coefficient, Intra-class-coefficient).
Four steps were required to obtain a translation consistent with the original version. Two hundred patients completed the questionnaire for validation. Internal consistency analysis found Cronbach's alphas > 0.7 for all scales (0.90 < α < 0.97). No floor or ceiling effect was found for all items (max = 85%). A ceiling effect was observed for all scales. Appearance and psychosocial impact scale items showed redundancy, with many inter-item correlations above 0.7. The CFA of the original structure displayed a reasonable fit, with RMSEA = 0.065, CFI = 0.974 and TLI = 0.972. Scales were positively correlated (0.45 < ρ < 0.65; p < 0.001). Test-retest intra-class correlation coefficients ranged from 0.94 to 0.99 for all scales.
A French version of the SCAR-Q questionnaire is validated, ready for use.
大多数评估瘢痕患者报告结局的问卷都有英文版本。本研究旨在生成经过验证的法语版 SCAR-Q 问卷。
根据国际指南（ISPOR 和 WHO），采用翻译-回译的方法将 SCAR-Q 问卷（包括外观、症状和心理影响量表）翻译成法语。为了验证问卷的有效性，我们让 200 名在我们的三级中心就诊的患者完成了问卷。我们测试了量表的信度（Cronbach's α）、地板/天花板效应和项目冗余度（项目间相关性）。结构有效性采用稳健加权最小二乘法（WLSMV）估计值和 Delta 参数化的验证性因子分析（CFA）进行测试。通过近似均方根误差（RMSEA）、比较拟合指数（CFI）和 Tucker-Lewis 指数（TLI）来检查模型拟合情况。还测试了量表之间的相关性和量表的可重复性（Spearman 系数、组内相关系数）。
需要经过四个步骤才能获得与原始版本一致的翻译。200 名患者完成了问卷验证。内部一致性分析发现，所有量表的 Cronbach's α均大于 0.7（0.90<α<0.97）。所有项目均未出现地板或天花板效应（最大值=85%）。所有量表均出现天花板效应。外观和心理社会影响量表的项目存在冗余，许多项目间相关性大于 0.7。原始结构的 CFA 显示出较好的拟合度，RMSEA=0.065，CFI=0.974，TLI=0.972。量表之间呈正相关（0.45<ρ<0.65；p<0.001）。所有量表的重测组内相关系数范围为 0.94 至 0.99。
法语版 SCAR-Q 问卷已验证，可投入使用。
