Chronic Disease Population Research Issues and Strategies

慢性病人群研究问题与策略

• 批准号: 7153262
• 负责人: Ross L Prentice
• 金额: $ 10.64万
• 依托单位: FRED HUTCHINSON CANCER RESEARCH CENTER
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7153262
• 关键词: biomarker; cancer prevention; chronic disease /disorder; data collection methodology /evaluation; data quality /integrity; experimental designs; human data; human population study; method development; neoplasm /cancer epidemiology; neoplasm /cancer genetics; nutrition aspect of cancer; nutrition related tag; single nucleotide polymorphism; statistics /biometry

This project will address methodology development needs that arise in disease prevention trials and epidemiologic cohort studies. Our continuing work on failure time data methods will include sub-aims on multivariate survivor function estimation, on cohort and case-control estimation under a semiparametric normal transformation model, on attributable risk estimation for a preventive intervention, and on case-only estimation methods in a randomized controlled trial context. Our continuing work, motivated by dietary and physical activity epidemiology, on covariate measurement error methods will develop and compare estimation procedures based on biomarker data on subsets of a cohort, and self-report data on the entire cohort. Both recovery-type biomarkers, corresponding to the expenditure of a nutrient, and concentrationtype biomarkers, reflecting the concentration of a nutrient blood or another body compartment, will be considered. Our work on population science research issues and strategies will continue to contrast randomized controlled trial and observational study data, toward identifying sources of bias, with emphasis on both postmenopausal hormone therapy and dietary intervention, and with motivation and data derived from the Women's Health Initiative (WHI) clinical trial and cohort study. Efforts to elucidate postmenopausal hormone therapy effects in the WHI have led to a number of case-control studies using the WHI specimen repository, including genome-wide single nucleotide polymorphism (SNP) association studies of diseases that were adversely affected by estrogen plus progestin use. Aspects of the design and analysis of highdimensional SNP association studies is an additional Project 1 research aim. These aims will be addressed by using statistical models for disease risk, non-standard exposure measurement models, standard genetic models, asymptotic distribution theory development, computer simulations, and applications to important chronic disease data sets.

该项目将解决疾病预防试验中出现的方法开发需求 流行病学队列研究。我们对故障时间数据方法的持续工作将包括以下子目标： 半参数下队列和病例对照估计的多变量幸存者函数估计 正态转换模型、预防性干预的可归因风险估计以及仅案例 随机对照试验背景下的估计方法。我们持续的工作，受到饮食和 身体活动流行病学，关于协变量测量误差的方法将开发和比较 基于队列子集的生物标志物数据和整个队列的自我报告数据的估计程序 队列。恢复型生物标志物（对应于营养素的消耗）和浓度型生物标志物 反映营养血液或其他身体隔室浓度的生物标记物将被 经过考虑的。我们在人口科学研究问题和策略方面的工作将继续进行对比 随机对照试验和观察性研究数据，旨在确定偏倚来源，重点是 关于绝经后激素治疗和饮食干预，以及得出的动机和数据 来自妇女健康倡议 (WHI) 临床试验和队列研究。努力阐明绝经后 WHI 中的激素治疗效果导致了许多使用 WHI 样本的病例对照研究 存储库，包括疾病的全基因组单核苷酸多态性 (SNP) 关联研究 受到雌激素加孕激素使用的不利影响。高维设计与分析方面 SNP 关联研究是项目 1 的另一个研究目标。这些目标将得到解决 通过使用疾病风险统计模型、非标准暴露测量模型、标准遗传模型 模型、渐近分布理论发展、计算机模拟及其在重要领域的应用 慢性病数据集。