PHYTOESTROGENS, PHYSICAL ACTIVITY AND ENDOMETRIAL CANCER

描述：这项以人群为基础的流行病学研究将检查 营养相关因素在糖尿病发生发展中的作用 子宫内膜癌。将特别强调植物雌激素。 (即，来自植物食品的弱雌激素，可能有 抗雌激素作用)和身体活动。人们对此知之甚少 这些因素会影响子宫内膜癌的风险，两者都具有潜在的作用。 预防的途径。此外，还计划确定是否 肥胖是子宫内膜癌的一个重要危险因素，其影响可能是 被高水平的植物雌激素消耗所改变。建立在研究的基础上 目前正在进行的，有计划检查七个影响 特定的植物雌激素化合物。拟议的病例对照研究将是 在旧金山湾区进行，在种族和文化上 不同的人群，在饮食摄入量上有很大的差异， 包括植物雌激素的消耗和体力活动。白人，非洲人 美国和拉美裔女性，年龄35-79岁，被诊断为子宫内膜癌 在三年期间，将确定。这些案件将是 根据种族和五岁年龄组，与对照组的频率匹配。 控制组将从参加正在进行的 基于人群的乳腺癌病例对照研究，该研究涉及 类似的假设。该研究中使用的调查问卷是 专门为解决这些领域而开发(包括全面的 饮食与终身职业休闲时间体能的评估 活动)，将在拟议的研究中使用。面谈将是 以英语或西班牙语进行，并进行人体测量。 在对数据进行初步审查后，将进行分析，使用 无条件Logistic回归，根据年龄、种族和 潜在的混杂因素。通过将这项研究与正在进行的乳房 癌症研究，拟议的研究将提供关于 子宫内膜癌的病因学及其与乳腺癌的关系 子宫内膜癌病因学方面的这些可改变的， 营养相关因素。

DESCRIPTION: This population-based epidemiologic study will examine the role that nutritionally-related factors play in the development of endometrial cancer. Special emphasis will be placed on phytoestrogens (i.e., weak estrogens, derived from plant foods, that may have antiestrogenic effects) and physical activity. Little is known about how these factors affect endometrial cancer risk and both offer potential avenues for prevention. Additionally, there are plans to determine whether the effects of obesity, a strong risk factor for endometrial cancer, can be modified by high levels of phytoestrogen consumption. Building on research currently being conducted, there are plans to examine the effects of seven specific phytoestrogenic compounds. The proposed case-control study will be conducted in the San Francisco Bay Area, an ethnically and culturally heterogeneous population, providing substantial variation in dietary intake, including phytoestrogen consumption, and physical activity. White, African American and Latina women, aged 35-79, diagnosed with endometrial cancer during a three-year period, will be identified. These cases will be frequency-matched to controls, based on ethnicity and five-year age group. Controls will be identified from control women, participating in an ongoing, population-based, case-control study of breast cancer, which addresses analogous hypotheses. The questionnaire being used in that study, which was developed specifically to address these areas (including a comprehensive assessment of diet and lifetime occupational and leisure time physical activity), will be used in the proposed study. In-person interviews will be conducted in English or Spanish and anthropometric measurements taken. After initial examination of the data, analyses will be conducted, using unconditional logistic regression, adjusting for age, ethnicity and potential confounders. By combining this research with the ongoing breast cancer study, the proposed study will provide important information on endometrial cancer aetiology and the relationship between breast and endometrial cancer aetiology in terms of these modifiable, nutritionally-related factors.