Evaluation of brief dietary questions to estimate vegetable and fruit consumption - using serum carotenoids and red-cell folate
Evaluation of brief dietary questions to estimate vegetable and fruit consumption - using serum carotenoids and red-cell folate
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DOI：
10.1079/phn2004688
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发表时间：
2005-05-01
影响因子：
3.2
通讯作者：
Lee, A
中科院分区：
文献类型：
--
作者：
Coyne, T;Ibiebele, TI;Lee, A
目的：通过与血清类胡萝卜素和红细胞叶酸水平的比较，评估对自我管理的关于蔬菜和水果消费的简短问题的反应。设计：在一项横断面研究中，参与者报告了他们每天的水果和蔬菜摄入量，以及血清中五种类胡萝卜素的水平。测量了维生素E（α-胡萝卜素、β-胡萝卜素、β-隐黄质、叶黄素/玉米黄质和番茄红素）和红细胞叶酸。血清类胡萝卜素水平通过高效液相色谱法测定，红细胞叶酸水平通过自动免疫分析系统测定。2000年10月至12月期间，从澳大利亚昆士兰州的六个随机选择的城市中心对1598名25岁及以上的成年人进行了抽样调查，作为一项全国性研究的一部分进行了检查，以确定糖尿病的患病率和相关的心血管危险因素。观察到α-胡萝卜素、β-胡萝卜素、β-隐黄质、叶黄素/玉米黄质和红细胞叶酸与蔬菜和水果摄入量（分为≥ 4份/天）的统计学显著（P < 0.01）关联。这些类胡萝卜素和红细胞叶酸的平均水平随着报告的蔬菜和水果的食用频率的增加而增加，在调整潜在的混杂因素之前和之后都是如此。一个显着的关联与番茄红素只观察到蔬菜摄入量调整confersider.Conclusions：这些数据表明，简短的问题可能是一个简单的和有价值的工具，用于监测蔬菜和水果的摄入量在这个人群。
Objective: To evaluate responses to self-administered brief questions regarding consumption of vegetables and fruit by comparison with blood levels of serum carotenoids and red-cell folate.Design: A cross-sectional study in which participants reported their usual intake of fruit and vegetables in servings per day, and serum levels of five carotenoids (alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein/zeaxanthin and lycopene) and red-cell folate were measured. Serum carotenoid levels were determined by high-performance liquid chromatography, and red-cell folate by an automated immunoassay system.Settings and subjects: Between October and December 2000, a sample of 1598 adults aged 25 years and over, from six randomly selected urban centres in Queensland, Australia, were examined as part of a national study conducted to determine the prevalence of diabetes and associated cardiovascular risk factors.Results: Statistically significant (P < 0.01) associations with vegetable and fruit intake ( categorised into groups: = 4 servings per day) were observed for alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein/zeaxanthin and red-cell folate. The mean level of these carotenoids and of red-cell folate increased with increasing frequency of reported servings of vegetables and fruit, both before and after adjusting for potential confounding factors. A significant association with lycopene was observed only for vegetable intake before adjusting for confounders.Conclusions: These data indicate that brief questions may be a simple and valuable tool for monitoring vegetable and fruit intake in this population.