【摘要】 目的 了解广州市白云区居民反式脂肪酸（trans fatty acid,TFA）食物消费量数据，为开展居民营养健康教育、营养改善工作及食品安全风险评估提供科学依据。方法 采用多阶段分层整群随机抽样方法，2020年调查广州市白云区3岁及以上人群，采用食物频率法调查研究对象近3个月内各类含反式脂肪酸食物的摄入频率和摄入量，计算反式脂肪酸的总摄入量，运用SPSS 19.0软件对数据进行整理，采用多重线性回归分析等统计方法分析筛选相关影响因素。结果 居民489人每日TFA摄入量中位数（median,M）[第25百分位数(25th percentile,P₂₅)，第75百分位数(75th percentile,P₇₅)]为0.623（0.322,1.309） g/d，男性每日TFA摄入量M(P₂₅,P₇₅)为0.636（0.331,1.289） g/d，女性每日TFA摄入量M(P₂₅,P₇₅)为0.600（0.300,1.313） g/d。共调查16类68种食物的每日TFA摄入量，高暴露食物种类主要是面包类、食用植物油类和糕点类，具体高暴露食物为花生油、普通面包（无涂抹）和牛肉。7～<19岁人群、学龄前儿童和在校学生的每日TFA摄入量较高。多重线性回归分析显示，年龄与每日TFA摄入量呈负相关关系（β=-0.090,P=0.010）。结论 广州市白云区儿童青少年是每日TFA摄入量的高暴露人群，需要加强学校和家庭膳食营养科普教育，增强学生营养健康意识，以降低TFA摄入量。更多还原

【Abstract】 Objective To understand the data of trans fatty acid（ TFA） food consumption among residents in Baiyun District,Guangzhou,and to provide a scientific basis for carrying out nutrition and health education,nutrition improvement work and food safety risk assessment for residents. Methods The multi-stage stratification cluster random sampling method was adopted to investigate the population aged 3 years and above in Baiyun District,Guangzhou in 2020. The food frequency method was adopted to investigate the intake frequency and intake of various trans fatty acid foods of the study subjects in the past 3 months,and the total intake of trans fatty acid was calculated. The data were processed using SPSS 19. 0 software,and statistical methods such as multiple linear regression analysis were used to analyze and screen relevant influencing factors. Results The median（ M） [25 th percentile( P₂₅),75 th percentile( P₇₅) ]of daily TFA intake among 489 residents was 0. 623（ 0. 322,1. 309） g/d,the daily TFA intake M of males was 0. 636（ 0. 331,1. 289） g/d,and the daily TFA intake M of females was 0. 600（ 0. 300,1. 313） g/d. A total of 68 types of foods from 16 categories were investigated for daily TFA intake. The types of high-exposure foods were mainly bread,edible vegetable oil and pastries. The specific high-exposure foods were peanut oil,ordinary bread（ without spread） and beef. Daily TFA intakes of 7-<19 years old groups,preschool children and students in school were relatively high. Multiple linear regression analysis showed that age was negatively correlated with daily TFA intake（ β =-0. 090,P = 0. 010）. Conclusion Children and adolescents in Baiyun District in Guangzhou are high-exposed groups for daily TFA intake. It is necessary to strengthen the popular science education for dietary nutrition in schools and families enhance students’ nutritional health awareness,and reduce TFA intake.更多还原