The polyp prevention trial II: dietary intervention program and participant baseline dietary characteristics.
The polyp prevention trial II: dietary intervention program and participant baseline dietary characteristics.
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息肉预防试验二：饮食干预计划和参与者基线饮食特征。
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
D. C. Clifford
中科院分区：
文献类型：
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作者：
E. Lanza;A. Schatzkin;R. Ballard;D. Corle;C. Clifford;E. Paskett;D. Hayes;E. Bote;B. Caan;M. Shike;J. Weissfeld;M. Slattery;D. Mateski;C. Daston;D. C. Clifford
息肉预防试验(PPT)是一项多中心随机对照试验，旨在评估低脂肪、高膳食纤维、高水果和蔬菜的饮食模式是否会减少大肠腺瘤性息肉的复发。最近切除了一个或多个腺瘤的男性和女性被随机分为干预组(n=1037)和对照组(n=1042)。食物频率问卷数据显示，在试验开始时，PPT参与者从脂肪中摄取了36.8%的总能量，9.7g/1000千卡的膳食纤维，以及3.8份水果和蔬菜。两个研究组的基线饮食特征，包括脂肪、纤维、水果和蔬菜的摄入量，以及其他常量和微量营养素的摄入量，是相似的。干预参与者接受广泛的饮食和行为咨询，以实现PPT饮食目标，即来自脂肪的总能量的20%，18g/1000千卡的膳食纤维，以及每天5-8份水果和蔬菜(取决于总卡路里摄入量)。对照组参与者没有接受这样的咨询，预计会继续他们通常的摄入。两组的饮食摄入量每年都使用4天的食物记录(也是干预参与者在6个月时完成的)和食物频率问卷进行提及，参与者中有10%的随机样本完成了年度非计划24小时电话召回。每年都会抽取血液样本进行血脂和类胡萝卜素的分析。这篇文章详细介绍了PPT饮食干预计划的原理和设计，并描述了参与者的基线膳食摄入量数据特征。
The Polyp Prevention Trial (PPT) is a multicenter randomized controlled trial to evaluate whether a low-fat, high-dietary fiber, high-fruit and -vegetable eating pattern will reduce the recurrence of adenomatous polyps of the large bowel. Men and women who had one or more adenomas removed recently were randomized into either the intervention (n = 1037) or control (n = 1042) arms. Food frequency questionnaire data indicate that PPT participants at the beginning of the trial consumed 36.8% of total energy from fat, 9.7 g of dietary fiber/1000 kcal, and 3.8 daily servings of fruits and vegetables. Baseline dietary characteristics, including intake of fat, fiber, and fruits and vegetables, as well as other macro- and micronutrients, were similar in the two study groups. The intervention participants receive extensive dietary and behavioral counseling to achieve the PPT dietary goals of 20% of total energy from fat, 18 g/1000 kcal of dietary fiber, and 5-8 daily servings (depending on total caloric intake) of fruits and vegetables. Control participants do not receive such counseling and are expected to continue their usual intake. Dietary intake in both groups is mentioned annually using a 4-day food record (also completed at 6 months by intervention participants only) and a food frequency questionnaire, with a 10% random sample of participants completing an annual unscheduled 24-h telephone recall. Blood specimens are drawn and analyzed annually for lipids and carotenoids. This article provides details on the rationale and design of the PPT dietary intervention program and describes the participant baseline dietary intake data characteristics.
美国饮食中的水果和蔬菜：来自 NHANES II 调查的数据。
影响因子：
12.7
作者：
Patterson,BH;Block,G;Rosenberger,WF;Pee,D;Kahle,LL
通讯作者：
Kahle,LL
影响因子：
5
作者：
WILLETT, WC;SAMPSON, L;SPEIZER, FE
通讯作者：
SPEIZER, FE
影响因子：
5
作者：
WEST, DW;SLATTERY, ML;SORENSEN, AW
通讯作者：
SORENSEN, AW