Seasonal variations in dietary intake affect the consistency of dietary assessment
Seasonal variations in dietary intake affect the consistency of dietary assessment
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DOI：
10.1023/a:1017542928978
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发表时间：
2001-01-01
影响因子：
13.6
通讯作者：
Kristal-Boneh, E
中科院分区：
文献类型：
--
作者：
Shahar, DR;Yerushalmi, N;Kristal-Boneh, E
背景资料：营养流行病学研究通常基于一项膳食评估，而不考虑进行访谈的季节或调整不同季节报告膳食摄入量的差异。半定量食物频率问卷已成为流行病学研究中测量膳食摄入量的主要问卷方法。本报告的目的是（a）通过两次半定量食物频率问卷（FFQ）评估季节对饮食摄入量的影响：一次在夏季，第二次在冬季;（B）评估饮食摄入量差异对生化和人体测量季节相关变化的影响，如血清胆固醇和体重指数（BMI）。人口和方法：研究人群由94名男性工业雇员组成，他们参加了临床生化和体格检查，以及每年两次的膳食摄入量评估。膳食摄入量进行了评估，使用半定量FFQ，其中包括96个项目，并进行了个人访谈。结果如下：我们发现，与夏季相比，冬季某些营养素的摄入量显着增加，以及肉类和乳制品等含动物脂肪食物的摄入量增加。膳食饱和脂肪摄入量的增加与BMI、血清总胆固醇和LDL胆固醇的增加之间存在显著相关系数。膳食胆固醇的增加与血清总胆固醇和LDL胆固醇的增加显著正相关。结论：虽然FFQ的目的是评估平均每年的食物摄入量，我们确定了显着的季节性变化，饮食摄入量的FFQ测量。这些变化对我国人口的健康产生了影响。
Background: Nutritional epidemiology studies are usually based on one dietary assessment without taking into account the season in which the interview is taken or adjusting for the difference in reporting dietary intake in different seasons. The semiquantitative food frequency questionnaire has become the primary questionnaire method for measuring dietary intake in epidemiological studies. The aims of this report were (a) to evaluate the effect of season on dietary intake as measured by a semiquantitative food frequency questionnaire (FFQ) conducted twice: once in summer and a second time in winter; and (b) to assess the effect of the differences in dietary intake on biochemical and anthropometric seasonal related changes, such as serum cholesterol and body mass index (BMI). Population and methods: The study population consisted of 94 male industrial employees who participated in clinical biochemical and physical examinations as well as evaluation of their dietary intake twice a year. Dietary intake was assessed using the semiquantitative FFQ that included 96 items and was conducted by a personal interview. Results: We found a significant increase in the intake of selected nutrients in winter as compared to summer as well as an increased intake of animal fat-containing foods such as meat and dairy products. Significant correlation coefficients were shown between the increase in dietary intake of saturated fat and the increase in BMI, serum total and LDL cholesterol. The increase in dietary cholesterol was significantly and positively correlated with the increase in serum total and LDL cholesterol. Conclusion: Although FFQ are designed to assess average yearly food intake, we identified significant seasonal changes in dietary intake as measured by FFQ. These changes have a health impact on our population.