Designing of a data-based semi-quantitative food frequency questionnaire of the nutrient intake in the urban and rural areas of Chongqing
Designing of a data-based semi-quantitative food frequency questionnaire of the nutrient intake in the urban and rural areas of Chongqing
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发表时间：
2003
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通讯作者：
Z. Zi
中科院分区：
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作者：
Z. Zi
目的设计一种涵盖重庆市城乡居民食物和营养素摄入情况的半定量食物频率问卷（SQFFQ）。方法采用3天称重食物记录法（3dWFR）对重庆市城乡居民膳食进行调查。我们根据中国标准食物成分表计算了35种营养素的摄入量。对于通过百分比贡献分析（CA）和多元回归分析（MRA）估计的每种营养素，选择贡献率高达90%或累积R2为0.90的食物作为SQFFQ的项目。综合SQFFQ的食物项目选自城市或农村SQFFQ中列出的所有项目。结果城乡居民能量、蛋白质和碳水化合物的平均摄入量差异无统计学意义。后者比城市居民消耗更多的脂肪。我们为综合SQFFQ选择了119个食品项目，其中城市SQFFQ有22个特定项目，农村SQFFQ有6个，两者都有78个，还有13个额外项目。综合SQFFQ涵盖了33种营养素，每个区域的贡献率高达90%。结论基于SQFFQ数据的SQFFQ适用于城乡人群。其可靠性和重现性试验有待进一步研究。
Objective To design a semi quantitative food frequency questionnaire (SQFFQ) that covers comprehensive food and nutrient intake for both urban and rural populations in Chongqing. Methods The dietary data were collected with 3 day weighed food records(3 day WFR) in urban and rural areas of Chongqing. We calculated the intake of 35 nutrients according to Standard Food Composition Tables for China. For each nutrient estimated by percentage contribution analysis (CA) and multiple regression analysis (MRA), foods with up to a 90% contribution or a 0.90 cumulative R 2 were selected as items for SQFFQs. The food items of the combined SQFFQ were selected from all items listed in either urban or rural SQFFQs. Results No significant difference in the mean intake of energy, protein and carbohydrate was found between the urban and rural residents. The latter consumed more fat than their urban counterparts. We selected 119 food items for the combined SQFFQ, including 22 specific items for the urban SQFFQ, 6 for the rural, 78 for both and 13 additional items. The combined SQFFQ covered 33 nutrients with up to a 90% contribution in each area. Conclusion The data based SQFFQ should be suitable to cover both urban and rural populations. The reliability and reproducibility tests are needed to be further studied.