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首页> 外文期刊>Sao Paulo Medical Journal >Comparison of a short version of the Food Frequency Questionnaire with its long version - a cross-sectional analysis in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)
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Comparison of a short version of the Food Frequency Questionnaire with its long version - a cross-sectional analysis in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

机译：短版《食品频率问卷》与长版《食品频率问卷》的比较-巴西成人健康纵向研究（ELSA-巴西）中的横断面分析

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ABSTRACT CONTEXT AND OBJECTIVE: The food frequency questionnaire (FFQ) is the preferred instrument for obtaining dietary information in epidemiological studies. A short form of the FFQ was compared with the original version that was used in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil), and also with three 24-hour dietary recalls. DESIGN AND SETTING: Cross-sectional study carried out in six Brazilian state capitals. METHODS: Multiple linear regression was used to reduce the original food and drink list of the FFQ, which had contained 114 food items. The frequency of consumption and nutritional composition of the foods were also taken into consideration. To assess the validity of the shortened FFQ, the energy and nutrients values of the 24-hour dietary recalls were deattenuated and log-transformed. RESULTS: The list of the FFQ of ELSA-Brasil was reduced to 76 food items. The intraclass correlation coefficients in the validation study ranged from 0.17 (selenium) to 0.66 (calcium). CONCLUSIONS: The number of items was reduced by 33%, while still maintaining relatively good capacity to measure energy and selected nutrients.
机译：摘要背景和目的：食物频率调查表（FFQ）是在流行病学研究中获取饮食信息的首选工具。 FFQ的简短形式与巴西成人健康纵向研究（ELSA-Brasil）中使用的原始版本进行了比较，还进行了三个24小时的饮食召回。设计与环境：在六个巴西州首府进行的横断面研究。方法：采用多元线性回归来减少FFQ的原始食品和饮料清单，该清单包含114种食品。还考虑了食物的食用频率和营养成分。为了评估缩短的FFQ的有效性，对24小时饮食召回的能量和营养价值进行了衰减和对数转换。结果：巴西ELSA的FFQ清单减少到76种食品。验证研究中的类内相关系数范围从0.17（硒）到0.66（钙）。结论：项目数量减少了33％，同时仍保持了相对较好的能量和选定营养素测量能力。

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