Predictors of dietary change and maintenance in the Women's Health Initiative Dietary Modification Trial
Predictors of dietary change and maintenance in the Women's Health Initiative Dietary Modification Trial
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DOI：
10.1016/j.jada.2007.04.010
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发表时间：
2007-07-01
影响因子：
--
通讯作者：
Wu, Lieling
中科院分区：
文献类型：
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作者：
Tinker, Lesley F.;Rosal, Milagros C.;Wu, Lieling
目的在一组绝经后妇女中确定饮食改变和维持低脂饮食模式（每日≥ 5份水果/蔬菜和每日≥ 6份谷物）的预测因子。候选预测因素包括个人、人际、干预项目特征和临床中心。设计妇女健康倡议饮食调整试验中的纵向研究。在参与妇女健康倡议饮食调整试验1年后评估饮食改变，并在3年后评估饮食维持。受试者为基线时年龄为50至79岁的绝经后妇女，她们被随机分配到妇女健康倡议饮食调整试验的干预组进行单变量和多变量线性回归分析，并评估候选预测因子与三个饮食目标中的每一个之间的关联：脂肪、水果/蔬菜和谷物的能量百分比。结果第1年（变化）脂肪能量百分比的预测因素（P
Objective To identify predictors of dietary change to and maintenance of a low-fat eating pattern (= 5 servings fruits/vegetables daily, and >= 6 servings grains daily) among a cohort of postmenopausal women. Candidate predictors included intrapersonal, interpersonal, intervention program characteristics, and clinical center.Design Longitudinal study within the Women's Health Initiative Dietary Modification Trial. Dietary change was evaluated after 1 year of participation in the Women's Health Initiative Dietary Modification Trial, and dietary maintenance after 3 years.Subjects Postmenopausal women aged 50 to 79 years at baseline who were randomized to the intervention arm of the Women's Health Initiative Dietary Modification Trial (n=19,541).Statistical analysis Univariate and multivariate linear regression analysis was performed and associations evaluated between candidate predictors and each of the three dietary goals: percent energy from fat, fruit/vegetable servings, and grain servings.Results Year 1 (change) predictors of percent energy from fat (P