Women's dietary patterns change little from before to during pregnancy.
Women's dietary patterns change little from before to during pregnancy.
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DOI：
10.3945/jn.109.109579
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发表时间：
2009-10
期刊：
影响因子：
--
通讯作者：
Inskip HM
中科院分区：
文献类型：
--
作者：
Crozier SR;Robinson SM;Godfrey KM;Cooper C;Inskip HM
主成分分析是一种流行的饮食模式分析方法，但我们对其用于描述饮食模式随时间变化的理解是有限的。我们使用食物频率问卷评估了来自英国南安普顿的12，572名年龄在20-34岁的非妊娠女性的饮食，其中2，270名和2，649名分别怀孕并提供了妊娠早期和晚期的完整饮食数据。白色面包、早餐谷类食品、蛋糕和饼干、加工肉类、薯片、水果和果汁、甜果酱、糖果、热巧克力饮料、布丁、奶油、牛奶、奶酪、全脂果酱、烹饪脂肪和沙拉油、红肉和软饮料的摄入量在怀孕期间增加。大米和面食、肝脏和肾脏、蔬菜、坚果、减肥可乐、茶和咖啡、煮土豆和饼干的摄入量在怀孕期间减少。主成分分析在每个时间点产生两个一致的饮食模式，标记为“谨慎”和“高能量”。在怀孕的每个时间点，对于谨慎和高能量模式，我们为每位女性得出了两个饮食模式评分：一个是基于该时间点定义的模式的“自然”评分，另一个是基于怀孕前定义的模式的“应用”评分。应用评分优于自然评分，以表征饮食模式随时间的变化，因为测量尺度保持不变。使用应用的分数有一个非常小的平均下降，在怀孕期间谨慎的饮食评分，和一个非常小的平均增加，在怀孕后期的高能量饮食评分，表明在怀孕期间的饮食模式的总体变化不大。
Principal component analysis is a popular method of dietary patterns analysis, but our understanding of its use to describe changes in dietary patterns over time is limited. We assessed the diets of 12,572 non-pregnant women aged 20-34 from Southampton, UK using a food frequency questionnaire, of whom 2,270 and 2,649 became pregnant and provided complete dietary data in early and late pregnancy respectively. Intakes of white bread, breakfast cereals, cakes and biscuits, processed meat, crisps, fruit and fruit juices, sweet spreads, confectionery, hot chocolate drinks, puddings, cream, milk, cheese, full-fat spread, cooking fats and salad oils, red meat and soft drinks increased in pregnancy. Intakes of rice and pasta, liver and kidney, vegetables, nuts, diet cola, tea and coffee, boiled potatoes and crackers decreased in pregnancy. Principal component analysis at each time point produced two consistent dietary patterns, labeled ‘prudent’ and ‘high-energy’. At each time point in pregnancy, and for both the prudent and high-energy patterns, we derived two dietary pattern scores for each woman: a ‘natural’ score, based on the pattern defined at that time point, and an ‘applied’ score, based on the pattern defined before pregnancy. Applied scores are preferred to natural scores to characterize changes in dietary patterns over time because the scale of measurement remains constant. Using applied scores there was a very small mean decrease in prudent diet score in pregnancy, and a very small mean increase in high-energy diet score in late pregnancy, indicating little overall change in dietary patterns in pregnancy.
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影响因子：
4.2
作者：
Cutler, Gretchen J.;Flood, Andrew;Neumark-Sztainer, Dianne
通讯作者：
Neumark-Sztainer, Dianne
影响因子：
4.7
作者：
Cucó, G;Fernández-Ballart, J;Arija, V
通讯作者：
Arija, V
影响因子：
2.3
作者：
Joliffe, I T;Morgan, B J
通讯作者：
Morgan, B J
影响因子：
--
作者：
Fung, TT;Willett, WC;Hu, FB
通讯作者：
Hu, FB
影响因子：
3.6
作者：
Mikkilä, V;Räsänen, L;Viikari, J
通讯作者：
Viikari, J