Epidemiologic Study of Hepatocellular Carcinoma in the US
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 45
- 试验地点
- 1
- 主要终点
- Lifetime physical activity
研究概览
简要总结
The purpose of this study is:
- to investigate the risk factors of HCC among Americans with focus on lifestyle factors and energy balance.
- to identify single nucleotide polymorphisms (SNPs) and haplotypes that are associated with HCC risk through a genome-wide search.
- to assess if genetic susceptibility differs by hepatitis virus infection or lifestyle factors, and to explore if there are interplays or effect modifications between genetic factors and viral infection or lifestyle factors.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 35 Years 至 84 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Lifetime physical activity
时间窗: 20 years
Lifetime physical activity will be measured by collecting data on major types of physical activity separately and by determining frequency, intensity, and duration of each activity using a combined modification of Friedenreich's lifetime physical activity questionnaire and Kriska's past year physical activity questionnaires.
Energy intake
时间窗: 20 years
A modified Food Frequency questionnaire based on one developed by Dr. Alan Kristal from the Fred Hutchinson Cancer Research Center (FHCRC) in Seattle will capture energy intake by differentiating low-fat food options from higher-fat counterparts.
Lifestyle factors
时间窗: 20 years
Structured questionnaires will be used to elicit information on demographic, anthropometric, and socioeconomic factors, long-term use of medications, medical history, and family history of cancer, cigarette smoking and alcohol consumption, physical activity, and dietary habits. Additional information unrelated to liver cancer will be included in the questionnaire to help assess possible recall bias.
次要结局
未报告次要终点