Fruit and vegetable assessment: Performance of 2 new short instruments and a food frequency questionnaire
Fruit and vegetable assessment: Performance of 2 new short instruments and a food frequency questionnaire
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DOI：
10.1016/s0002-8223(02)90379-2
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发表时间：
2002-12-01
影响因子：
--
通讯作者：
Kipnis, V
中科院分区：
文献类型：
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作者：
Thompson, FE;Subar, AF;Kipnis, V
目的评价两种新的简易评估工具和食物频率问卷（FFQ）对水果和蔬菜摄入量的测量能力。“全天”筛选器询问关于9种食物的频率和份量问题。“随餐”筛选器是类似的，除了它询问了这9种食物中的2种。设计调查参与者在1年内完成了4次电话管理的24小时饮食回忆，1到2个月后完成了一次自我管理的FFQ，另外7个月后，2名自我管理筛查者中有1名。研究对象为202名男性和260名女性，年龄在20至70岁之间，居住在美国各地。统计分析根据测量误差模型，将每个筛选者和FFQ测量的水果和蔬菜摄入量与真实的日常摄入量进行比较，24小时饮食回忆作为参考instrument.Results估计的平均每日服务的水果和蔬菜如下：男性：真摄入量（5.8）与全天筛选（5.0），随餐筛选（5.5），和FFQ（6.6）;女性：真摄入量（4.2）与全天筛选（5.0），随餐筛选（5.4），和FFQ（6.2）。测试仪器和真实摄入量之间的估计相关性如下：（0.66），餐前筛选器（0.67），FFQ（0.68）;对于妇女：全天筛选（0.51），餐后筛选器（0.53），关于FFQ（0.54）.应用/结论两种筛选器都可能有助于估计美国人群中水果和蔬菜摄入量的中位数，但它们在准确地对个体进行排名时可能不太有用。在少数民族或低识字率人群中使用筛查仪之前，需要进行更多的研究。
Objective To evaluate the ability of 2 new short assessment instruments and a food frequency questionnaire (FFQ) to measure intake of fruit and vegetables. The "All-Day" screener asks frequency and portion size questions about 9 food items. The "By-Meal" screener is similar, except that it asks about 2 of those 9 food items in terms of mealtime.Design Survey participants completed 4 telephone-administered 24-hour dietary recalls over 1 year, a self-administered FFQ 1 to 2 months later, and 1 of 2 self-administered screeners after an additional 7 months.Subjects/setting Participating were 202 men and 260 women aged 20 to 70 years living throughout the United States.Statistical analyses Fruit and vegetable intakes measured by each screener and the FFQ were compared with true usual intake based on a measurement error model with 24-hour dietary recalls as the reference instrument.Results Estimates of median daily servings of fruit and vegetables were as follows: For men: True intake (5.8) vs All-Day screener (5.0), By-Meal screener (5.5), and FFQ (6.6); for women: true intake (4.2) vs All-Day screener (5.0), By-Meal screener (5.4), and FFQ (6.2). Estimated correlations between the test instruments and true intake were as follows: For men: All-Day screener (0.66), By-Meal screener (0.67), FFQ (0.68); for women: All-Day screener (0.51), By-Meal screener (0.53), and FFQ (0.54).Applications/conclusions Both screeners might be useful to estimate median intakes of fruit and vegetable servings in US populations, but they might be less useful in accurately ranking individuals. More research is needed before using the screeners in ethnic or low-literacy populations.