Epidemiological Analysis of Vitamin D and Breast Cancer Risk in Saudi Arabian Women
Vitamin D Status and Breast Cancer in Saudi Arabian Women: Case Control Study
研究概览
详细说明
Background: The role of vitamin D in breast cancer prevention is equivocal. Saudi Arabian women are thought to be at greater risk for vitamin D deficiency due to darker skin type and greater likelihood for reduced UVB radiation exposure. However, there is a lack of data regarding the vitamin D status of Saudi Arabian women and how this may relate to breast cancer risk.
Objective: The purpose of this research was to evaluate the association between circulating concentrations of 25(OH)D and breast cancer risk in Saudi Arabian women.
Design: A case-control study was conducted among 120 breast cancer cases and 120 controls. The study population was drawn from patients admitted to King Fahd Hospital in Jeddah, Saudi Arabia from June to August 2009. Participants completed questionnaires on diet and medical history and serum samples were collected from all women to measure circulating 25(OH)D concentrations.
研究类型
注册 (实际的)
联系人和位置
学习地点
-
-
Arizona
-
Tucson、Arizona、美国、85721
- University of Arizona
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Invasive breast cancer (cases) or healthy women (controls),
- receiving standard medical check-ups at the women's clinic
- Female,
- between the ages of 18 and 75 years
- BMI ≤ 40 kg/m2
- residence in Saudi Arabia for more than 5 years
- absence of chronic diseases that could affect vitamin D metabolism, including renal, hepatic, endocrine, or autoimmune disease.
Exclusion Criteria:
receiving standard medical check-ups at the women's clinic
- Male,
- less than 18 or greater than 75 years of age
- BMI > 40 kg/m2
- Not a resident of Saudi Arabia for more than 5 years
- Presence of chronic diseases that could affect vitamin D metabolism, including renal, hepatic, endocrine, or autoimmune disease.
学习计划
研究是如何设计的？
设计细节
队列和干预
团体/队列 |
|---|
|
breast cancer cases
breast cancer cases versus controls
|
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 |
|---|---|---|
|
serum vitamin D
大体时间：cross-sectional from May 2009-August 2009
|
assessed serum vitamin D in cases versus controls
|
cross-sectional from May 2009-August 2009
|
合作者和调查者
调查人员
- 学习椅：Cynthia A Thomson, PhD、University of Arizona
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.