Macedo-Ojeda Gabriela, Vizmanos-Lamotte Barbara, Márquez-Sandoval Yolanda Fabiola, Rodríguez-Rocha Norma Patricia, López-Uriarte Patricia Josefina, Fernández-Ballart Joan D
Doctorado en Ciencias de la Salud Pública. Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdG). México. Cuerpo Académico "Alimentación y Nutrición en el Proceso Salud-Enfermedad". Lic. Nutrición. LEEN. Departamento de Reproducción Humana, Crecimiento y Desarrollo Infantil. CUCS. UdG. México..
Cuerpo Académico "Alimentación y Nutrición en el Proceso Salud-Enfermedad". Lic. Nutrición. LEEN. Departamento de Reproducción Humana, Crecimiento y Desarrollo Infantil. CUCS. UdG. México..
Nutr Hosp. 2013 Nov 1;28(6):2212-20.
Semi-quantitative Food Frequency Questionnaires (FFQs) analyze average food and nutrient intake over extended periods to associate habitual dietary intake with health problems and chronic diseases. A tool of this nature applicable to both women and men is not presently available in Mexico.
To validate a FFQ for adult men and women.
The study was conducted on 97 participants, 61% were women. Two FFQs were administered (with a one-year interval) to measure reproducibility. To assess validity, the second FFQ was compared against dietary record (DR) covering nine days. Statistical analyses included Pearson correlations and Intraclass Correlation Coefficients (ICC). The de-attenuation of the ICC resulting from intraindividual variability was controlled. The validity analysis was complemented by comparing the classification ability of FFQ to that of DR through concordance between intake categories and Bland-Altman plots.
Reproducibility: ICC values for food groups ranged 0.42-0.87; the range for energy and nutrients was between 0.34 and 0.82.
ICC values for food groups ranged 0.35-0.84; the range for energy and nutrients was between 0.36 and 0.77. Most subjects (56.7-76.3%) classified in the same or adjacent quintile for energy and nutrients using both methods. Extreme misclassification was <6.3% for all items. Bland-Altman plots reveal high concordance between FFQ and DR.
FFQ produced sufficient levels of reproducibility and validity to determine average daily intake over one year. These results will enable the analysis of possible associations with chronic diseases and dietary diagnoses in adult populations of men and women.
半定量食物频率问卷（FFQ）分析较长时间段内的平均食物和营养摄入量，以将习惯性饮食摄入与健康问题和慢性疾病联系起来。目前墨西哥尚无适用于男性和女性的此类工具。
验证一种适用于成年男性和女性的FFQ。
该研究对97名参与者进行，其中61%为女性。发放两份FFQ（间隔一年）以测量可重复性。为评估有效性，将第二份FFQ与涵盖九天的饮食记录（DR）进行比较。统计分析包括Pearson相关性和组内相关系数（ICC）。控制了个体内变异性导致的ICC衰减。通过比较FFQ与DR在摄入类别间的一致性以及Bland-Altman图，对有效性分析进行补充。
可重复性：食物组的ICC值范围为0.42 - 0.87；能量和营养素的范围为0.34至0.82。
食物组的ICC值范围为0.35 - 0.84；能量和营养素的范围为0.36至0.77。使用两种方法，大多数受试者（56.7 - 76.3%）在能量和营养素方面被分类在相同或相邻的五分位数。所有项目的极端错误分类率均<6.3%。Bland-Altman图显示FFQ与DR之间具有高度一致性。
FFQ产生了足够水平的可重复性和有效性，以确定一年中的平均每日摄入量。这些结果将有助于分析成年男性和女性人群中与慢性疾病的可能关联以及饮食诊断。
