Ziegler O, Filipecki J, Girod I, Guillemin F
Department of Diabetes, Metabolic and Nutritional Diseases, Jeanne d'Arc Hospital, Nancy University Hospitals, Nancy, Toul 54201, France.
Diabetes Metab. 2005 Jun;31(3 Pt 1):273-83. doi: 10.1016/s1262-3636(07)70194-5.
To develop and validate a new health related quality of life (HRQOL) questionnaire specific to obesity and its management.
This study was in two parts. The first (Study 1) consisted of the creation of a new tool derived from the American "Impact of Weight on Quality of Life Questionnaire" (IWQOL, 74 items) by adding to it a 17 items specific complementary module. This initial questionnaire (91 items) was reduced so as to obtain a questionnaire adapted to socio-cultural factors of obesity and dietary weight management in France. The objective of the second (Study 2) was to validate this final questionnaire by evaluating its psychometric properties: construction validity, internal reliability, concurrent validity in relation to a generic questionnaire, the SF-12, clinical validity by studying the effects of age, gender and body mass index (BMI), and reproducibility.
The results of Study 1, obtained in 128 obese patients (mean age: 42.5 12.1, BMI: 34.5 2.8 kg/m2, women: 83.6%) enabled reduction of the 91 questionnaire items to 36, grouped into 5 dimensions: physical impact, psycho-social impact, sex life, comfort with food and diet experience. Two hundred and twelve patients (mean age: 43.3 12.2, BMI: 35.8 7.4 kg/m2, women: 77.7%) were included in Study 2, among whom 75 filled out the questionnaire twice at a one week interval. Analyses enabled verification of the construction validity and internal reliability (Cronbach alpha > 0.7) of the questionnaire as well as its concurrent validity in relation to summarized SF-12 scores and its clinical validity. The "physical impact" dimension was significantly influenced by BMI and age, the dimensions "sex life" and "diet experience" by the factors gender and BMI, while "psycho-social impact" was influenced by the 3 factors cited. Its reproducibility was also deemed satisfactory (intra-class correlation coefficient > 0.8).
This new questionnaire, called the "Echelle Qualité de Vie, Obésité et Diététique (EQVOD)"/"Quality of Life, Obesity and Dietetics (QOLOD)" rating scale is sufficiently reliable and reproducible to be used in clinical practice. It is a simple tool adapted to socio-cultural factors of obesity in France, enabling taking into account of the effects of dietary management on the HRQOL of obese people.
开发并验证一种专门针对肥胖及其管理的新的健康相关生活质量（HRQOL）问卷。
本研究分为两个部分。第一部分（研究1）包括在源自美国的“体重对生活质量问卷”（IWQOL，74项）基础上创建一个新工具，通过添加一个17项的特定补充模块。这个初始问卷（91项）经过缩减，以获得一个适应法国肥胖及饮食体重管理社会文化因素的问卷。第二部分（研究2）的目的是通过评估其心理测量特性来验证这个最终问卷：结构效度、内部信度、与通用问卷SF - 12相关的同时效度、通过研究年龄、性别和体重指数（BMI）的影响来验证临床效度以及可重复性。
研究1在128名肥胖患者（平均年龄：42.5±12.1，BMI：34.5±2.8kg/m²，女性：83.6%）中进行，结果使91项问卷缩减至36项，分为5个维度：身体影响、心理社会影响、性生活、对食物的舒适度和饮食体验。研究2纳入了212名患者（平均年龄：43.3±12.2，BMI：35.8±7.4kg/m²，女性：77.7%），其中75人每隔一周填写两次问卷。分析验证了问卷的结构效度和内部信度（Cronbach阿尔法系数>0.7）以及其与SF - 12总分相关的同时效度和临床效度。“身体影响”维度受BMI和年龄显著影响，“性生活”和“饮食体验”维度受性别和BMI因素影响，而“心理社会影响”受上述三个因素影响。其可重复性也被认为令人满意（组内相关系数>0.8）。
这种新问卷，称为“生活质量、肥胖与饮食量表（EQVOD）”/“生活质量、肥胖与饮食学量表（QOLOD）”，足够可靠且可重复，可用于临床实践。它是一个适应法国肥胖社会文化因素的简单工具，能够考虑到饮食管理对肥胖者HRQOL的影响。
