Vitamin D Levels and Survival in Cancer Patients
2017年8月28日 更新者：Icelandic Heart Association
Association of Pre-diagnostic Vitamin D Levels and Survival in Older Individuals With Cancer
Using the population-based data sources in Iceland and the well-characterized AGES-Reykjavik cohort, our overarching aims are on exploring whether pre-diagnostic serum levels of 25-hydroxyvitamin D (25(OH)D) among older individuals living in Iceland were associated with survival after cancer diagnosis.
We also wanted to assess the risk of being diagnosed with cancer in association with 25(OH)D levels.
In this population living just south of the arctic circle, vitamin D levels largely depend on dietary- and supplemental sources.
研究概览
地位
完全的
条件
研究类型
观察性的
注册 (实际的)
5764
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
66年 至 98年 (年长者)
接受健康志愿者
不
有资格学习的性别
全部
取样方法
概率样本
研究人群
In 1967, all 30,795 men and women living in the capital area of Iceland and born between 1907 and 1935 were invited by the Icelandic Heart Association to join a prospective cohort study.
Approximately 19,000 attended the clinic at least once and became participants of the Reykjavik Study.
Subsequently, in 2002, a random sample of the cohort comprising 5,764 men and women who were still alive in Iceland and aged 66 to 96 years entered the Ages Gene/Environment Susceptibility (AGES) - Reykjavik Study (20).
Serum 25(OH)D was measured in 5,519 of all 5,764 (96%) participants at study entry in year 2002 through 2006.
描述
Inclusion Criteria:
To be part of the AGES-Reykjavik Study, initiated between 2002 and 2006.
Exclusion Criteria:
Diagnosed with cancer at study entry
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Overall mortality among cancer patients
大体时间：Patients were followed from date of diagnosis since 2002 until death or censored at end of the follow-up (December 31, 2014)
|
We tested the association between pre-diagnostic 25(OH)D levels and total survival
|
Patients were followed from date of diagnosis since 2002 until death or censored at end of the follow-up (December 31, 2014)
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Cancer-specific mortality among cancer patients
大体时间：Patients were followed from date of diagnosis since 2002 until death or censored at end of the follow-up (December 31, 2014)
|
We tested the association between pre-diagnostic 25(OH)D levels and cancer survival
|
Patients were followed from date of diagnosis since 2002 until death or censored at end of the follow-up (December 31, 2014)
|
其他结果措施
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Pre-diagnostic 25(OH)D levels and cancer risk
大体时间：Participants without cancer were followed from the study entry since 2002 until cancer diagnosis, death or end of the observation period whichever occurred first (December 31, 2014)
|
We tested the association between pre-diagnostic 25(OH)D levels and risk of being diagnosed with cancer
|
Participants without cancer were followed from the study entry since 2002 until cancer diagnosis, death or end of the observation period whichever occurred first (December 31, 2014)
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2002年1月1日
初级完成 (实际的)
2006年12月30日
研究完成 (实际的)
2006年12月30日
研究注册日期
首次提交
2017年8月28日
首先提交符合 QC 标准的
2017年8月28日
首次发布 (实际的)
2017年8月30日
研究记录更新
最后更新发布 (实际的)
2017年8月30日
上次提交的符合 QC 标准的更新
2017年8月28日
最后验证
2017年8月1日
更多信息
与本研究相关的术语
其他研究编号
- HI14010102
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